I. Kolář: The application of Cartan’s method to general nets on surfaces in three-dimensional projective space (Czech). Rozpravy CSAV, Academia, Praha 1967.
 I. Kolář: Introduction into Thom’s catastrophe theory (Czech). Academia, Praha 1988.
 A. Cabras, D. Canarutto, I. Kolář, M. Modugno: Structured Bundles. Pitagora Editrice, Bologna 1991.
 I. Kolář, P. W. Michor, J. Slovák: 
Natural Operations in Differential Geometry. Springer–Verlag, 1993. 
MR 1202431 M. Katětov, I. Kolář, P. Simon, E. G. Sklyarenko: 
The mathematical legacy of Eduard Čech. Academia Praha–Birkhauser Basel, 1993. 
MR 1269142 V. Havel, I. Kolář, K. Svoboda: 
La méthode du réperage des systemes de sous-variétés. CMUC 5 (1964), 183–201. 
MR 0175050 I. Kolář: 
On Lenz’s problem on the independence of the axioms of affine space. CMUC 6 (1965), 339–346. 
MR 0192385 I. Kolář: 
Conjugate nets of axial and axial-radial types with respect to the congruences of canonical lines with variable index (Russian). Čas. pěst. mat. 91 (1966), 64–71. 
MR 0195009 I. Kolář: 
Geometric structure with Hilbert’s axioms of incidence and order. Čas. pěst. mat. 91 (1966), 384–388. 
MR 0208450 I. Kolář: 
On extended connections. CMUC 9 (1968), 687–690. 
MR 0246217 I. Kolář: On the higher order connections on principal fiber bundles (Czech). Sborník VAAZ Brno, řada B (1969), 39–47.
 I. Kolář: 
Order of holonomy and geometric objects of manifolds with connection. CMUC 10 (1969), 559–565. 
MR 0264539 I. Kolář: 
Geometric objects of submanifolds of a space with fundamental Lie pseudogroup. CMUC 11 (1970), 227–234. 
MR 0266081 I. Kolář: 
Order of holonomy of a surface with projective connection. Čas. pest. mat. 96 (1971), 73–80. 
MR 0286026 I. Kolář: 
Complex velocities on real manifolds. Czechoslovak Math. J. 21 (1971), 118–123. 
MR 0276884 I. Kolář: 
On the torsion of spaces with connection. Czechoslovak Math. J. 21 (1971), 124–136. 
MR 0293531 I. Kolář: 
Higher order torsions of spaces with Cartan connection. Cahiers Topol. Géom. Diff. 12 (1971), 137–146. 
MR 0315619 I. Kolář: 
Canonical forms on the prolongations of principal fibre bundles. Rev. Roumaine Math. Pures Appl. 16 (1971), 1091–1106. 
MR 0301668 I. Kolář: 
On the prolongations of geometric object fields. An. Sti. Univ. ’Al. I. Cuza’ Iasi 17 (1971), 437–446. 
MR 0305278 I. Kolář: 
The contact of spaces with connection. J. Differential Geometry 7 (1972), 563–570. 
MR 0415660 I. Kolář: 
Higher order torsions of manifolds with connection. Arch. Math. (Brno) 8 (1972), 149–156. 
MR 0331265 I. Kolář: 
A generalized point of view to osculating spaces. Rendiconti di Matematica, (4), Serie VI 5 (1972), 731–743. 
MR 0334041 I. Kolář: 
On the absolute differentiation of geometric object fields. Ann. Polon. Math. 27 (1973), 293–304. 
MR 0326593 I. Kolář: 
On manifolds with connection. Czechoslovak Math. J. 23 (1973), 34–44. 
MR 0315620 I. Kolář: 
On the prolongations of differentiable distributions. Matematický časopis SAV 23 (1973), 317–325. 
MR 0336770 I. Kolář: 
On the infinitesimal geometric objects of submanifolds. Arch. Math. (Brno) 9 (1973), 203–211. 
MR 0375113 I. Kolář: 
Some higher order operations with connections (preliminary communication). CMUC 14 (1973), 761–766. 
MR 0343202 I. Kolář: 
On the reducibility of connections on the prolongations of vector bundles. Colloq. Math. 30 (1974), 245–257. 
MR 0372903 I. Kolář: 
Some higher order operations with connections. Czechoslovak Math. J. 24 (1974), 311–330. 
MR 0356114 I. Kolář: 
On some operations with connections. Math. Nachrichten 69 (1975), 297–306. 
MR 0391157 I. Kolář: 
A generalization of the torsion form. Čas. pěst. mat. 100 (1975), 284–290. 
MR 0383287 I. Kolář: 
Generalized G-structures and G-structures of higher order. Boll. Un. Mat. Ital., Suppl. fasc. 3 12 (1975), 245–256. 
MR 0445424 I. Kolář: 
On the Hamilton formalism in fibered manifolds. Scripta Fac. Sci. Nat. UJEP Brunensis, Physica 5 (1975), 249–254. 
MR 0442978 I. Kolář: 
Affine differential operators and the Hamilton formalism. Knižnice VUT Brno B56 (1975), 17–21. 
MR 0402811 I. Kolář: 
On the jet prolongations of smooth categories. Bull. Acad. Polon. Sci., Sér. math. 24 (1976), 883–887. 
MR 0436190 I. Kolář: 
On the invariant method in differential geometry of submanifolds. Czechoslovak Math. J. 27 (1977), 96–113. 
MR 0428231 I. Kolář: 
On the Euler-Lagrange differential in fibered manifolds. Reports on Mathematical Physics 12 (1977), 301–305. 
MR 0501101 I. Kolář: 
Fundamental vector fields on associated fiber bundles. Čas. pěst. mat. 102 (1977), 419–425. 
MR 0482887 I. Kolář: Induced connections and connection morphisms. CSSR-GDR-Polish Scientific School on Differential Geometry, Proceedings (1978), 125–132.
 I. Kolář: 
Structure morphisms of prolongation functors. Math. Slovaca 30 (1980), 83–93. 
MR 0568217 I. Kolář: 
On the automorphisms of principal fiber bundles. CMUC 21 (1980), 309–312. 
MR 0580685 I. Kolář: Lie derivatives and natural operators. Eighth Winter School on Abstract Analysis, Abstracts, Mathematical Institute of the CSAV, Praha (1980), 108–109.
 I. Kolář: 
On generalized connections. Beitrage zur Algebra und Geometrie 11 (1981), 29–34. 
MR 0680454 I. Kolář: 
Connections in 2-fibered manifolds. Arch. Math. (Brno) 17 (1981), 23–30. 
MR 0672485 I. Kolář: 
Fiber parallelism and connections. Lecture Notes in Mathematics, 838, Springer-Verlag (1981), 165–173. 
MR 0636278 J. Janyška, I. Kolář: 
Lie derivatives on vector bundles. Proceedings of the Conference on Diff. Geom. and its Applications, Universita Karlova Praha (1982), 111–116. 
MR 0663218 I. Kolář: 
Lie derivatives and higher order Lagrangians. Proceedings of the Conference on Diff. Geom. and its Applications, Universita Karlova Praha (1982), 117–123. 
MR 0663219 I. Kolář: 
Prolongations of generalized connections. Colloquia Matematica Societatis János Bolyai, 31. Differential Geometry, Proceedings, North Holland (1982), 317–325. 
MR 0706928 I. Kolář, V. Lešovský: 
Structure equations of generalized connections. Čas. pěst. mat. 107 (1982), 253–256. 
MR 0673050 I. Kolář: 
On the second tangent bundle and generalized Lie derivatives. Tensor, N. S. 38 (1982), 98–102. 
MR 0832633 M. Horák, I. Kolář: 
On the higher order Poincaré-Cartan forms. Czechoslovak Math. J. 33 (1983), 467–475. 
MR 0718929 I. Kolář: 
Functorial prolongations of Lie groups and their actions. Čas. pěst. mat. 108 (1983), 289–293. 
MR 0716414 I. Kolář: 
Some geometric aspects of the higher order variational calculus. Proceedings of the Conference on Diff. Geom. and its Applications, Nové Město na Moravě 2 (1983), 155–166. 
MR 0793206 I. Kolář: 
Higher order absolute differentiation with respect to generalized connections. Differential Geometry, Banach Center Publications 12 (1984), 153–162. 
MR 0961078 I. Kolář: 
A geometrical version of the higher order Hamilton formalism in fibered manifolds. J. Geometry and Physics 1 (1984), 127–137. 
MR 0794983 I. Kolář: 
Natural transformations of the second tangent functor into itself. Arch. Math. (Brno) 20 (1984), 169–172. 
MR 0784868 I. Kolář, I. Vadovičová: 
On the structure function of a G-structure. Math. Slovaca 35 (1985), 277–282. 
MR 0808363 J. Janyška, I. Kolář: 
On the connections naturally induced on the second order frame bundle. Arch. Math. (Brno) 22 (1986), 21–28. 
MR 0868117 I. Kolář: 
Natural operations with connections on second order frame bundles. Colloquia Mathematica Societatis János Bolyai, 46. Topics in Differential Geometry, Proceedings, North Holland (1986), 715–732. 
MR 0933869 I. Kolář: 
Covariant approach to natural transformations of Weil functors. CMUC 27 (1986), 723–729. 
MR 0874666 I. Kolář: 
Some natural operators in differential geometry. Differential Geometry and Its Applications, Proceedings, D. Reidel (1987), 91–110. 
MR 0923346 I. Kolář, G. Vosmanská: 
Natural operations with second order jets. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 14 (1987), 179–186. 
MR 0920854 I. Kolář, P. W. Michor: 
All natural concomitants of vector valued differential forms. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 16 (1987), 101–108. 
MR 0946715 I. Kolář: 
Some natural operations with connections. J. of National Academy of India 5 (1987), 127–141. 
MR 0994555 I. Kolář, Z. Radziszewski: 
Natural transformations of second tangent and cotangent functors. Czechoslovak Math. J. 38 (1988), 274–279. 
MR 0946296 I. Kolář: 
On the natural operators on vector fields. Ann. Global Anal. Geom. 6 (1988), 109–117. 
MR 0982760 I. Kolář: 
Lie derivatives of sectorform fields. Colloq. Math. LV (1988), 71–78. 
MR 0964324 I. Kolář: Functorial prolongations of r-connections. Lecture Notes KMU Leipzig 88-08 (1988), 1-10.
 M. Doupovec, I. Kolář: On the natural operators transforming connections to the tangent bundle of a fibred manifold. Knižnice VUT Brno B119 (1988), 47–56.
 I. Kolář, G. Vosmanská: 
Natural transformations of higher order tangent bundles and jet spaces. Čas. pěst. mat. 114 (1989), 181–185. 
MR 1063764 I. Kolář, J. Slovák: 
On the geometric functors on manifolds. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 21 (1989), 223–233. 
MR 1009575 I. Kolář: On some gauge-natural operators. Seminari dell’Istituto di Matematica Applicata, Firenze (l989), 1–11.
 I. Kolář, M. Modugno: On the algebraic structure on the bundles of higher order velocities. Seminari dell’Istituto di Matematica Applicata, Firenze (1989), 1–17.
 I. Kolář: Natural operators transforming vector fields and exterior forms into exterior forms. Zeszyty naukowe Politechniki Slaskej, Matematyka-Fizyka 64 (1990), 135–139.
 I. Kolář, J. Slovák: 
Prolongation of vector fields to jet bundles. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 22 (1990), 103–111. 
MR 1061792 I. Kolář: 
General natural bundles and operators. Differential Geometry and Its Applications, Proceedings, Brno, World Scientific (1990), 69–78. 
MR 1062007 I. Kolář, M. Modugno: 
On the algebraic structure on the jet prolongations of fibered manifolds. Czechoslovak Math. J. 40 (1990), 601–611. 
MR 1084896 J. Gancarzewicz, I. Kolář: 
Some gauge-natural operators on linear connections. Monatshefte Math. 111 (1991), 23–33. 
MR 1089381 I. Kolář, M. Modugno: 
Natural maps on the iterated jet prolongation of a fibered manifold. Annali di Mat. pura ed applicata CLVIII (1991), 151–165. 
MR 1131848 I. Kolář: 
Gauge-natural operators transforming connections to the tangent bundle. The Mathematical Heritage of C. F. Gauss, World Scientific (1991), 416–426. 
MR 1146244 A. Cabras, I. Kolář, M. Modugno: 
General structured bundles. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 26 (1991), 105–111. 
MR 1151895 M. Doupovec, I. Kolář: 
Natural affinors on time-dependent Weil bundles. Arch. Math. (Brno) 27 (1991), 205–209. 
MR 1189217 I. Kolář: 
Natural bundles and operators (Russian). Problemy geometrii, VINITI Moskva 23 (1991), 67–98. 
MR 1152586 A. Cabras, I. Kolář: 
Special tangent-valued forms and the Frolicher-Nijenhuis bracket. Arch. Math. (Brno) 29 (1991), 71–82. 
MR 1242630 I. Kolář: 
Some gauge-natural operators on connections. Colloquia Mathematica Societatis János Bolyai, 56. Differential Geometry, Proceedings, Janos Bolayi Math. Soc. Budapest and Elsevier, Amsterdam (1992), 435–445. 
MR 1211672 I. Kolář, M. Modugno: 
Torsions of connections on some natural bundles. Differential Geometry and its Applications 2 (1992), 1–16. 
MR 1244453 J. Gancarzewicz, I. Kolář: 
Natural affinors on the extended r-th order tangent bundles. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 30 (1993), 95–100. 
MR 1246623 I. Kolář: 
Gauge-natural forms of Chern-Weil type. Ann. Global Anal. Geom. 11 (1993), 41–47. 
MR 1201410 I. Kolář: 
An abstract characterization of the jet spaces. Cahiers Topol. Géom. Diff. Catégoriques XXXIV (1993), 121–125. 
MR 1223655 I. Kolář: 
On the natural operators transforming vector fields to the r-th order tensor power. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 32 (1993), 15–20. 
MR 1283617 I. Kolář: 
Natural operators related with the variational calculus. Differential Geometry and Its Applications, Proceedings Opava (1993), 461–472. 
MR 1255562 I. Kolář: 
On cotangent bundles of some natural bundles. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 37 (1994), 115–120. 
MR 1344006 A. Cabras, I. Kolář: 
Prolongation of tangent valued forms to Weil bundles. Arch. Math. (Brno) 31 (1995), 139–145. 
MR 1357981 A. Cabras, I. Kolář: 
Connections on some functional bundles. Czechoslovak Math. J. 45 (1995), 529–548. 
MR 1344519 I. Kolář: 
Torsion-free connections on higher order frame bundles. New Developments in Differential Geometry, Proceedings, Kluwer (1996), 233–241. 
MR 1377287 I. Kolář: Recent results and new ideas on Weil bundles. Proceedings of the Conference on Geometry and Topology, Timisoara, July 5–9, 1994, Editura MIRTON, Timisoara, 1996, 127–136.
 I. Kolář: 
An infinite dimensional motivation in higher order geometry. Differential Geometry and Applications, Proceedings, Masaryk University, Brno, 1996, 151–159. 
MR 1406335 I. Kolář: 
Natural operations on higher order tangent bundles. Extracta Matematica 11 (1996), 106-115. 
MR 1424748 I. Kolář, G. Virsik: 
Connections in first principal prolongations. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 43 (1996), 163–171. 
MR 1463518 I. Kolář, M. Modugno: 
The Frolicher-Nijenhuis bracket on some functional spaces. to appear in Ann. Polon. Math.. 
MR 1610540 A. Cabras, I. Kolář: 
The universal connection of an arbitrary system. to appear in Annali di Mat.. 
MR 1746921 A. Cabras, I. Kolář: 
On the iterated absolute differentiation on some functional bundles. to appear in Arch. Math. (Brno). 
MR 1464298 I. Kolář: 
On holonomicity criteria in second order geometry. to appear. 
MR 1642743 I. Kolář, M. Sekanina: 60th anniversary of birthday of Karel Svoboda (Czech). Pokroky MFA 24 (1979), 53–54.
 I. Kolář: 
Cogitation about differential geometric work of Eduard Čech (Czech). Pokroky MFA 25 (1980), 306–312. 
MR 0624783 I. Kolář: Czech geometry in last fourty years and some contemporary trends in differential geometry (Czech). Sborník: Vývoj matematiky v ČSR v období 1945-1985 a její perspektivy, Universita Karlova, Praha 1986, 70–87.
 I. Kolář: Geometry in contemporary mathematics and its role in education (Czech). Pokroky MFA 34 (1989), 41–54.
 Z. Došlá, I. Kolář: About the testament of Professor Pelíšek (Czech). Pokroky MFA 37 (1992), 303–304.
 I. Kolář: Professor Eduard Čech (Czech). Sborník: Brněnská věda a umění meziválečného období (1918-1939) v evropském kontextu, Masarykova universita, Brno 1993, 212–214.
 I. Kolář, J. Rosický, F. Šik: 
100th anniversary of birthday of Eduard Čech. Arch. Math. (Brno) 29 (1993), i-ii. 
MR 1242621 I. Kolář: 
100th anniversary of birthday of Eduard Čech. Supplemento ai Rendiconti del Circolo Matematico di Palermo, Serie II 37 (1994), 13–14. 
MR 1343996 I. Kolář: Some contemporary trends in mathematics and their relations to mathematical physics (Czech). Sborník: University na prahu nového tisíciletí, Masarykova universita, Brno 1995 I, 311–315.
 I. Kolář: The role of geometry in contemporary mathematics (Czech). Matematika-fyzika-informatika 5 (1995/96), 393–398.
 I. Kolář: Ladislav Seifert. Folia Historica, Faculty of Science, Masaryk University Brno No 32 (May 1996).
 I. Kolář: Eduard Čech. Folia Historica, Faculty of Science, Masaryk University Brno No 34 (June 1996).
 I. Kolář: 
Erlangen Program (Czech). Matematika v 19. století, Sborník, Prometheus Praha 1996, 83-87. 
MR 1889802