54.99 None of the above, but in this section (3 articles)
Frolík, Zdeněk:
On the descriptive theory of sets.
(English).Czechoslovak Mathematical Journal,
vol. 13
(1963),
issue 3,
pp. 335-359
Michael, E.: Collared sets.
(English).
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. [270]-271
Frolík, Z.: A contribution to the descriptive theory of sets and spaces.
(English).
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. [157]-173
