Ivanova, V. M.; Ivanov, A. A.: Continuous mappings of extensions of a topological space.
(English).
In:
Novák, J. (ed.): General Topology and its Relations to Modern Analysis and Algebra.
Proceedings of the Third Prague Topological Symposium, 1971.
Academia Publishing House of the Czechoslovak Academy of Sciences, Praha, 1972.
pp. 209-214
Ivanova, V. M.; Ivanov, A. A.: Отношения смежности и $H$-замкнутые расширния.
(Russian) [Contiguity relations and $H$-closed extenstions].
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. 195-199