Császár, Á.: Some problems concerning $C(X)$.
(English).
In:
General topology and its relations to modern analysis and algebra IV, Proceedings of the fourth Prague topological symposium, 1976.
Part A: Invited papers.
Springer, Berlin, 1977.
pp. [43]-55
Császár, Á.: Syntopogene halbgruppen.
(German) [Syntopogeneous semigroups].
In:
General Topology and its Relations to Modern Analysis and Algebra.
Proceedings of the second Prague topological symposium, 1966.
Academia Publishing House of the Czechoslovak Academy of Sciences, Praha, 1967.
pp. 101-102
Császár, Á.: Complétion et compactification d'espaces syntopogènes.
(French) [Completion and compactification of syntopogenous spaces].
In:
General Topology and its Relations to Modern Analysis and Algebra.
Proceedings of the symposium held in Prague in September 1961.
Academia Publishing House of the Czechoslovak Academy of Sciences, Prague, 1962.
pp. 133-137
