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Author: Jakubík, Ján

• Jakubík, Ján: On the distributive radical of an Archimedean lattice-ordered group. (English). Czechoslovak Mathematical Journal, vol. 59 (2009), issue 3, pp. 687-693
• Jakubík, Ján: On the Schröder-Bernstein problem for Carathéodory vector lattices. (English). Czechoslovak Mathematical Journal, vol. 59 (2009), issue 2, pp. 419-430
• Jakubík, Ján: Projectability and weak homogeneity of pseudo effect algebras. (English). Czechoslovak Mathematical Journal, vol. 59 (2009), issue 1, pp. 183-196
• Jakubík, Ján: Affine completeness and wreath product decompositions of lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 3, pp. 717-723
• Jakubík, Ján: Direct product decompositions of bounded commutative residuated $\ell$-monoids. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 4, pp. 1129-1143
• Jakubík, Ján: Direct summands and retract mappings of generalized $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 1, pp. 183-202
• Jakubík, Ján: On a theorem of Cantor-Bernstein type for algebras. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 1, pp. 1-14
• Jakubík, Ján: On some types of radical classes. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 3, pp. 833-848
• Jakubík, Ján: Banaschewski’s theorem for generalized $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 57 (2007), issue 4, pp. 1099-1105
• Jakubík, Ján: Isometries of generalized $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 57 (2007), issue 1, pp. 161-171
• Jakubík, Ján: On idempotent modifications of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 57 (2007), issue 1, pp. 243-252
• Jakubík, Ján: Weak homogeneity of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 57 (2007), issue 3, pp. 849-863
• Jakubík, Ján: On a homogeneity condition for $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 1, pp. 79-98
• Jakubík, Ján: On monotone permutations of $\ell$-cyclically ordered sets. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 2, pp. 403-415
• Jakubík, Ján: Subdirect decompositions and the radical of a generalized Boolean algebra extension of a lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 2, pp. 733-754
• Jakubík, Ján: Weak homogeneity and Pierce’s theorem for $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 4, pp. 1215-1227
• Jakubík, Ján: Affine completeness and lexicographic product decompositions of abelian lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 55 (2005), issue 4, pp. 917-922
• Jakubík, Ján: On vector lattices of elementary Carathéodory functions. (English). Czechoslovak Mathematical Journal, vol. 55 (2005), issue 1, pp. 223-236
• Jakubík, Ján: Strong projectability of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 55 (2005), issue 4, pp. 957-973
• Jakubík, Ján: Generalized cardinal properties of lattices and lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 54 (2004), issue 4, pp. 1035-1053
• Jakubík, Ján: On some interpolation rules for lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 54 (2004), issue 2, pp. 499-507
• Jakubík, Ján: On the affine completeness of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 54 (2004), issue 2, pp. 423-429
• Jakubík, Ján: Convex chains in a pseudo MV-algebra. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 1, pp. 113-125
• Jakubík, Ján: Graph automorphisms and cells of lattices. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 1, pp. 103-111
• Jakubík, Ján: Higher degrees of distributivity in $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 3, pp. 641-653
• Jakubík, Ján: On free $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 2, pp. 311-317
• Jakubík, Ján: On varieties of pseudo $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 4, pp. 1031-1040
• Jakubík, Ján: Projectability and splitting property of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 4, pp. 907-915
• Jakubík, Ján: On half cyclically ordered groups. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 2, pp. 275-294
• Jakubík, Ján: On intervals and isometries of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 3, pp. 651-663
• Jakubík, Ján: On orthogonally $\sigma$-complete lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 4, pp. 881-888
• Jakubík, Ján: On product $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 4, pp. 797-810
• Jakubík, Ján: Torsion classes of Specker lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 3, pp. 469-482
• Jakubík, Ján: Complete distributivity of lattice ordered groups and of vector lattices. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 4, pp. 889-896
• Jakubík, Ján: Distinguished completion of a direct product of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 3, pp. 661-671
• Jakubík, Ján: Lexicographic products of half linearly ordered groups. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 1, pp. 127-138
• Frič, Roman; Jakubík, Ján: Sequential convergences on Boolean algebras defined by systems of maximal filters. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 2, pp. 261-274
• Jakubík, Ján: State-homomorphisms on $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 3, pp. 609-616
• Jakubík, Ján: Convexities of normal valued lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 50 (2000), issue 3, pp. 641-649
• Jakubík, Ján: Lateral completion of a projectable lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 50 (2000), issue 2, pp. 431-444
• Jakubík, Ján: On cut completions of abelian lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 50 (2000), issue 3, pp. 587-602
• Jakubík, Ján: Cantor-Bernstein theorem for $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 3, pp. 517-526
• Jakubík, Ján: Distinguished extensions of an $MV$-algebra. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 4, pp. 867-876
• Jakubík, Ján: Graph automorphisms of a finite modular lattice. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 2, pp. 443-447
• Jakubík, Ján: Radical classes of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 1, pp. 191-211
• Jakubík, Ján: Subdirect product decompositions of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 1, pp. 163-173
• Jakubík, Ján; Csontóová, Mária: Affine completness of projectable lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 2, pp. 359-363
• Jakubík, Ján: Complete generators and maximal completions of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 3, pp. 597-608
• Jakubík, Ján: Lexicographic product decompositions of cyclically ordered groups. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 2, pp. 229-241
• Jakubík, Ján: On archimedean $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 3, pp. 575-582
• Jakubík, Ján: Radical classes of generalized Boolean algebras. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 2, pp. 253-268
• Jakubík, Ján: Lateral and Dedekind completions of strongly projectable lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 47 (1997), issue 3, pp. 511-523
• Jakubík, Ján: On complete lattice ordered groups with strong units. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 2, pp. 221-230
• Jakubík, Ján: On half lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 4, pp. 745-767
• Jakubík, Ján: Principal convergences on lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 4, pp. 721-732
• Jakubík, Ján: Affine completeness of complete lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 45 (1995), issue 3, pp. 571-576
• Jakubík, Ján: On complete $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 45 (1995), issue 3, pp. 473-480
• Jakubík, Ján: On some completeness properties for lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 45 (1995), issue 2, pp. 253-266
• Jakubík, Ján: Sequential convergences on $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 45 (1995), issue 4, pp. 709-726
• Jakubík, Ján; Pringerová, Gabriela: Direct limits of cyclically ordered groups. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 2, pp. 231-250
• Jakubík, Ján: Direct product decomposition of $MV$-algebras. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 4, pp. 725-739
• Jakubík, Ján; Kolibiar, Milan: Eighty years of Professor Štefan Schwarz. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 1, pp. 182-189
• Jakubík, Ján: On convexities of $d$-groups. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 2, pp. 305-314
• Jakubík, Ján: On extended cyclic orders. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 4, pp. 661-675
• Jakubík, Ján: Complete retract mappings of a complete lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 43 (1993), issue 2, pp. 309-318
• Jakubík, Ján: On filters of ordered semigroups. (English). Czechoslovak Mathematical Journal, vol. 43 (1993), issue 3, pp. 519-522
• Jakubík, Ján: On convexities of lattices. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 2, pp. 325-330
• Jakubík, Ján: Partially ordered sets with nondistributive lattices of maximal antichains. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 4, pp. 685-691
• Jakubík, Ján: Sequential convergences in $\ell$-groups without Urysohn’s axiom. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 1, pp. 101-116
• Jakubík, Ján; Šmarda, Bohumil: Seventy years of Professor František Šik. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 1, pp. 181-185
• Jakubík, Ján: Completions and closures of cyclically ordered groups. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 1, pp. 160-169
• Jakubík, Ján: Correction to the paper “Selfduality of the system of intervals of a partially ordered set”. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 4, pp. 736
• Jakubík, Ján: Lattice ordered groups with unique addition must be archimedean. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 3, pp. 559-563
• Jakubík, Ján: Maximal antichains in a partially ordered set. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 1, pp. 75-84
• Jakubík, Ján: Mixed product decompositions of a directed group. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 3, pp. 429-435
• Jakubík, Ján: Selfduality of the system of intervals of a partially ordered set. (English). Czechoslovak Mathematical Journal, vol. 41 (1991), issue 1, pp. 135-140
• Jakubík, Ján: Convergences and higher degrees of distributivity of lattice ordered groups and of Boolean algebras. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 3, pp. 453-458
• Jakubík, Ján: Cyclically ordered groups with unique addition. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 3, pp. 534-538
• Jakubík, Ján: On directed interpolation groups. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 4, pp. 648-658
• Jakubík, Ján: On lattice ordered groups having a unique addition. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 2, pp. 311-314
• Jakubík, Ján: Retract varieties of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 40 (1990), issue 1, pp. 104-112
• Jakubík, Ján: Direct product decompositions of directed groups. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 4, pp. 618-621
• Jakubík, Ján: Lattice ordered groups having a largest convergence. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 4, pp. 717-729
• Jakubík, Ján: Lexicographic factors of a linearly ordered group. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 1, pp. 111-119
• Harminc, Matúš; Jakubík, Ján: Maximal convergences and minimal proper convergences in $\ell$-groups. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 4, pp. 631-640
• Jakubík, Ján: On a radical class of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 4, pp. 641-643
• Jakubík, Ján: On some types of kernels of a convergence $l$-group. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 2, pp. 239-247
• Jakubík, Ján: Retracts of abelian lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 3, pp. 477-485
• Jakubík, Ján: Closure operators on the lattice of radical classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 1, pp. 71-77
• Jakubík, Ján: Sequential convergences in Boolean algebras. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 3, pp. 520-530
• Jakubík, Ján: Unequivocal linearly ordered groups. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 2, pp. 245-255
• Černák, Štefan; Jakubík, Ján: Completion of a cyclically ordered group. (English). Czechoslovak Mathematical Journal, vol. 37 (1987), issue 1, pp. 157-174
• Jakubík, Ján: Lexicographic product decompositions of a linearly ordered group. (English). Czechoslovak Mathematical Journal, vol. 36 (1986), issue 4, pp. 553-563
• Jakubík, Ján: On strictly positive lattice ordered semigroups. (English). Czechoslovak Mathematical Journal, vol. 36 (1986), issue 1, pp. 31-34
• Jakubík, Ján: Radical subgroups of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 36 (1986), issue 2, pp. 285-297
• Jakubík, Ján: On isomorphisms of graphs of lattices. (English). Czechoslovak Mathematical Journal, vol. 35 (1985), issue 2, pp. 188-200
• Jakubík, Ján: On weak direct product decompositions of lattices and graphs. (English). Czechoslovak Mathematical Journal, vol. 35 (1985), issue 2, pp. 269-277
• Jakubík, Ján: On lattices determined up to isomorphisms by their graphs. (English). Czechoslovak Mathematical Journal, vol. 34 (1984), issue 2, pp. 305-314
• Jakubík, Ján; Kolibiar, Milan: Seventieth anniversary of birthday of Academician Štefan Schwarz. (English). Czechoslovak Mathematical Journal, vol. 34 (1984), issue 3, pp. 490-498
• Jakubík, Ján; Kolibiar, Milan: Isometries of multilattice groups. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 4, pp. 602-612
• Jakubík, Ján: On $K$-radical classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 1, pp. 149-163
• Jakubík, Ján: Distributivity of intervals of torsion radicals. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 548-555
• Jakubík, Ján; Katriňák, Tibor: The sixtieth anniversary of Professor Milan Kolibiar. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 3, pp. 498-503
• Jakubík, Ján: Torsion radicals of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 3, pp. 347-363
• Jakubík, Ján; Sekanina, Milan: The 60th anniversary of Professor František Šik. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 3, pp. 494-500
• Jakubík, Ján: On the lattice of torsion classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 4, pp. 510-513
• Jakubík, Ján: On value selectors and torsion classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 2, pp. 306-313
• Jakubík, Ján: Prime selectors and torsion classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 2, pp. 325-337
• Jakubík, Ján: Generalized lattice identities in lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 30 (1980), issue 1, pp. 127-134
• Jakubík, Ján: Isometries of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 30 (1980), issue 1, pp. 142-152
• Jakubík, Ján: Weak isomorphisms of abelian lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 30 (1980), issue 3, pp. 438-444
• Jakubík, Ján: Archimedean kernel of a lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 1, pp. 140-154
• Jakubík, Ján: Generalized Dedekind completion of a lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 2, pp. 294-311
• Jakubík, Ján: Maximal Dedekind completion of an abelian lattice-ordered group. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 4, pp. 611-631
• Jakubík, Ján: Orthogonal hull of a strongly projectable lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 3, pp. 484-504
• Jakubík, Ján: Strongly projectable lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 26 (1976), issue 4, pp. 642-652
• Jakubík, Ján: $W$-isomorphisms of distributive lattices. (English). Czechoslovak Mathematical Journal, vol. 26 (1976), issue 2, pp. 330-338
• Jakubík, Ján: Cardinal sums of linearly ordered groups. (English). Czechoslovak Mathematical Journal, vol. 25 (1975), issue 4, pp. 568-575
• Jakubík, Ján: Products of torsion classes of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 25 (1975), issue 4, pp. 576-585
• Jakubík, Ján: Sublattices with saturated chains. (English). Czechoslovak Mathematical Journal, vol. 25 (1975), issue 3, pp. 442-444
• Jakubík, Ján: Unoriented graphs of modular lattices. (English). Czechoslovak Mathematical Journal, vol. 25 (1975), issue 2, pp. 240-246
• Jakubík, Ján; Kolibiar, Milan: News and Notices. Sixtieth anniversary of the birthday of Academician Štefan Schwarz. (English). Czechoslovak Mathematical Journal, vol. 24 (1974), issue 2, pp. 331-340
• Jakubík, Ján: Normal prime filters of a lattice ordered group. (English). Czechoslovak Mathematical Journal, vol. 24 (1974), issue 1, pp. 91-96
• Jakubík, Ján: Splitting property of lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 24 (1974), issue 2, pp. 257-269
• Jakubík, Ján: Center of a complete lattice. (English). Czechoslovak Mathematical Journal, vol. 23 (1973), issue 1, pp. 125-138
• Jakubík, Ján: On $\sigma$-complete lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 23 (1973), issue 1, pp. 164-174
• Jakubík, Ján: Cantor-Bernstein theorem for lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 22 (1972), issue 1, pp. 159-175
• Jakubík, Ján: Distributivity in lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 22 (1972), issue 1, pp. 108-125
• Jakubík, Ján: Homogeneous lattice ordered groups. (English). Czechoslovak Mathematical Journal, vol. 22 (1972), issue 2, pp. 325-337
• Jakubík, Ján: Weak product decompositions of discrete lattices. (English). Czechoslovak Mathematical Journal, vol. 21 (1971), issue 3, pp. 399-412
• Jakubík, Ján: The mixed product decompositions of partially ordered groups. (English). Czechoslovak Mathematical Journal, vol. 20 (1970), issue 2, pp. 184-206
• Jakubík, Ján: Higher degrees of distributivity in lattices and lattice-ordered groups. (English). Czechoslovak Mathematical Journal, vol. 18 (1968), issue 2, pp. 356-376
• Jakubík, Ján: Über Verbandsgruppen mit zwei Erzeugenden. (German) [On lattice groups with two generators]. Czechoslovak Mathematical Journal, vol. 14 (1964), issue 3, pp. 444-454
• Jakubík, Ján: Лексикографические произведения частично упорядоченных группоидов. (Russian) [Lexicographic products of partially ordered groupoids]. Czechoslovak Mathematical Journal, vol. 14 (1964), issue 2, pp. 281-305
• Jakubík, Ján: Представление и расширение $l$-групп. (Russian) [Representation and extension of $l$-groups]. Czechoslovak Mathematical Journal, vol. 13 (1963), issue 2, pp. 267-283
• Jakubík, Ján: Прямые разложения частично упорядоченных групп, II. (Russian) [Direct decompositions of partially ordered groups, II]. Czechoslovak Mathematical Journal, vol. 11 (1961), issue 4, pp. 490-515
• Jakubík, Ján: Прямые разложения частично упорядоченных групп. (Russian) [Direct decompositions of partially ordered groups]. Czechoslovak Mathematical Journal, vol. 10 (1960), issue 2, pp. 231-243
• Jakubík, Ján: О главных идеалах в структурно упорядоченных группах. (Russian) [Principal ideals in $l$-groups]. Czechoslovak Mathematical Journal, vol. 9 (1959), issue 4, pp. 528-543
• Jakubík, Ján: Об аксиомах теории мультиструктур. (Russian) [On the axioms of multistructures]. Czechoslovak Mathematical Journal, vol. 6 (1956), issue 3, pp. 426-430
• Jakubík, Ján: Прямые разложения вполне дистрибутивных структур. (Russian) [Direct decompositions of completely distributive complete lattices]. Czechoslovak Mathematical Journal, vol. 5 (1955), issue 4, pp. 488-491
• Jakubík, Ján: Прямые разложения единицы в модулярных структурах. (Russian) [Direct decompositions of the unity in modular lattices]. Czechoslovak Mathematical Journal, vol. 5 (1955), issue 3, pp. 399-411
• Jakubík, Ján: О графическом изоморфизме структур. (Russian) [On lattices whose graphs are isomorphic]. Czechoslovak Mathematical Journal, vol. 4 (1954), issue 2, pp. 131-142
• Jakubík, Ján; Kolibiar, Milan: О некоторых свойствах пар структур. (Russian) [On some properties of a pair of lattices]. Czechoslovak Mathematical Journal, vol. 4 (1954), issue 1, pp. 1-27
• Jakubík, Ján: О отношениях конгруэнтности на абстрактных алгебрах. (Russian) [Congruence relations on abstract algebras]. Czechoslovak Mathematical Journal, vol. 4 (1954), issue 4, pp. 314-317
• Jakubík, Ján: Системы отношений конгруэнтности в структурах. (Russian) [System of congruence relations on lattices]. Czechoslovak Mathematical Journal, vol. 4 (1954), issue 3, pp. 248-273