@article{bwmeta1.element.bwnjournal-article-fmv53i1p19bwm,
author = {Janusz Charatonik},
title = {Two invariants under continuity and the incomparability of fans},
journal = {Fundamenta Mathematicae},
volume = {53},
year = {1964},
pages = {187-204},
zbl = {0142.40103},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv53i1p19bwm}
}
Charatonik, Janusz. Two invariants under continuity and the incomparability of fans. Fundamenta Mathematicae, Tome 53 (1964) pp. 187-204. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv53i1p19bwm/