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References:
[kn:BaR1] G. D. Barbour and J. G. Raftery: Ideal determined varieties have unbounded degrees of permutability. Quaestiones Math. 20 (1997), in print. DOI 10.1080/16073606.1997.9632225 | MR 1625526
[kn:BR95] W.J. Blok and J.G. Raftery: On the quasivariety of BCK-algebras and its subvarieties. Algebra Universalis 33 (1995), 68–90. DOI 10.1007/BF01190766 | MR 1303632
[kn:Cha81] I. Chajda: Distributivity and modularity of lattices of tolerance relations. Algebra Universalis 12 (1981), 247–255. DOI 10.1007/BF02483883 | MR 0608668 | Zbl 0469.08003
[kn:CR83] I. Chajda and J. Rachunek: Relational characterizations of permutable and $n$-permutable varieties. Czechoslovak Math. J. 33 (1983), 505–508. MR 0721079
[kn:Csa70] B. Csákány: Characterizations of regular varieties. Acta Sci. Math. (Szeged) 31 (1970), 187–189. MR 0272697
[kn:DMS87] B.A. Davey, K.R. Miles, and V.J. Schumann: Quasi-identities, Mal’cev conditions and congruence regularity. Acta. Sci. Math. (Szeged) 51 (1987), 39–55. MR 0911557
[kn:Dud83b] J. Duda: On two schemes applied to Mal’cev type theorems. Annales Universitatis Scientiarum Budapestiensis. Sectio Mathematica 26 (1983), 39–45. MR 0719774 | Zbl 0518.08002
[kn:Dud87] J. Duda: Mal’cev conditions for varieties of subregular algebras. Acta Sci. Math. (Szeged) 51 (1987), 329–334. MR 0940937 | Zbl 0647.08002
[kn:Fic68] K. Fichtner: Varieties of universal algebras with ideals. Mat. Sbornik 75(117) (1968), 445–453. (Russian) MR 0222001 | Zbl 0213.29602
[kn:Fic70] K. Fichtner: Eine Bermerkung über Mannigfaltigkeiten universeller Algebren mit Idealen. Monatsh. d. Deutsch. Akad. d. Wiss. (Berlin) 12 (1970), 21–25. MR 0256968
[kn:Hag73] J. Hagemann: On regular and weakly regular congurences. Technical report, Technische Hoschschule Darmstadt, June 1973, (Preprint No. 75).
[kn:HM73] J. Hagemann and A. Mitschke: On $n$-permutable congruences. Algebra Universalis 3 (1973), 8–12. DOI 10.1007/BF02945100 | MR 0330010
[kn:Idz83] P.M. Idziak: On varieties of BCK-algebras. Math. Japonica 28 (1983), 157–162. MR 0692565 | Zbl 0518.06015
[kn:Idz84a] P.M. Idziak: Lattice operation in BCK-algebras. Math. Japonica 29 (1984), 839–846. MR 0803438 | Zbl 0555.03030
[kn:Idz84b] P.M. Idziak: Filters and congruence relations in BCK-semilattices. Math. Japonica 29 (1984), 975–980. MR 0803455 | Zbl 0555.03032
[kn:IT78] K. Iséki and S. Tanaka: An introduction to the theory of BCK-algebras. Math. Japonica 23 (1978), 1–26. MR 0500283
[kn:Raf94] J. G. Raftery: Ideal determined varieties need not be congruence 3-permutable. Algebra Universalis 31 (1994), 293–297. DOI 10.1007/BF01236524 | MR 1259356 | Zbl 0803.08001
[kn:Wil70] R. Wille: Kongruenzklassengeometrien, volume 113 of Lecture Notes in Mathematics. Springer-Verlag, Berlin-Heidelberg-New York, 1970. MR 0262149
[kn:Wro83a] A. Wroński: BCK-algebras do not form a variety. Math. Japonica 28 (1983), 211–213. MR 0699585
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