Whiteman, J. R.; Goodsell, G.: Some features of the nodal recovery of gradients from finite element approximations which produces superconvergence. (English). In: Kurzweil, Jaroslav (ed.): Equadiff 7. Proceedings of the 7th Czechoslovak Conference on Differential Equations and Their Applications held in Prague, 1989. BSB B.G. Teubner Verlagsgesellschaft, Leipzig, 1990. pp. 305-308

Bouchala, Jiří: Landesman–Lazer type conditions and quasilinear elliptic equations. (English). In: Kuben, J. and Vosmanský, J. (eds.): Equadiff 10, Czechoslovak International Conference on Differential Equations and Their Applications, Prague, August 27-31, 2001. [Part 2] Papers. Masaryk University, Brno, 2002. pp. 45-51

Grabowski, Janusz: Ideals of the Lie algebras of vector fields. (English). In: Bureš, J. and Souček, V. (eds.): Proceedings of the Winter School "Geometry and Topology". Circolo Matematico di Palermo, Palermo, 1993. pp. [89]-95

Čech, Eduard Co je a nač je vyšší matematika? (Czech) [What is higher mathematics and what for is it?]. Jednota československých matematiků a fyziků, Praha, 1942, 124 pp.

Borůvka, Otakar: 26. Deformace a věty izomorfismu grup. (Czech). In: Borůvka, Otakar: Základy teorie grupoidů a grup. (Czech). Praha: Nakladatelství Československé akademie věd, 1962. pp. 192-197