@article{106042,
author = {Petr A. Biryukov},
title = {Cardinalities and ranks of $\pi$-bases in topological spaces},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {021},
year = {1980},
pages = {769-776},
zbl = {0457.54003},
mrnumber = {597766},
language = {en},
url = {http://dml.mathdoc.fr/item/106042}
}
Biryukov, Petr A. Cardinalities and ranks of $\pi$-bases in topological spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 021 (1980) pp. 769-776. http://gdmltest.u-ga.fr/item/106042/
Prostranstva s bazami konečnogo ranga, Mat. Sbornik 1972, 87 (129), No. 2, 147-158 (Spaces with bases of finite rank). (1972) | MR 0296881
Ultrafilters on a countable set, Ann. Math. Logic 2 (1970), 1-24. (1970) | MR 0277371 | Zbl 0231.02067
The space of ultrafilters on N covered by nowhere dense sets, (to appear).
General Topology, PWN, Warszawa 1977. (1977) | MR 0500780 | Zbl 0373.54002
Extension of continuous functions, In N. Bull. Amer. Math. Soc. 66 (1960), 376-382. (1960) | MR 0123291 | Zbl 0161.42203
Spaces with bases of countable rank, Gen. Top. Appl. 8 (1978), No. 3. (1978) | MR 0494007
Cardinal functions in topology, Math. Centre Tracts 34, Amsterdam 1975. (1975) | MR 0340021
Spaces co-absolute with metric spaces, Russian Math. Surveys 21 (1966), No. 4, 87-113. (1966) | MR 0200902 | Zbl 0169.54203