Aull, C. E.: Point-countable bases and quasi-developments.
(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. 47-50
Aull, C. E.: Paracompact and countably paracompact subsets.
(English).
In:
Franklin, S. P., Frolík, Z.
and Koutník, V. (eds.): General Topology and Its Relations to Modern Analysis and Algebra.
Proceedings of the Kanpur topological conference, 1968.
Academia Publishing House of the Czechoslovak Academy of Sciences, Praha, 1971.
pp. 49-53
Aull, C. E.: Some base axioms for topology involving enumerability.
(English).
In:
Franklin, S. P., Frolík, Z.
and Koutník, V. (eds.): General Topology and Its Relations to Modern Analysis and Algebra.
Proceedings of the Kanpur topological conference, 1968.
Academia Publishing House of the Czechoslovak Academy of Sciences, Praha, 1971.
pp. [55]-61
Aull, C. E.: Paracompact subsets.
(English).
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. 45-51