@article{bwmeta1.element.bwnjournal-article-fmv138i1p4bwm,
author = {Szymon Plewik},
title = {Ideals of the second category},
journal = {Fundamenta Mathematicae},
volume = {138},
year = {1991},
pages = {23-26},
zbl = {0786.04002},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv138i1p4bwm}
}
Plewik, Szymon. Ideals of the second category. Fundamenta Mathematicae, Tome 138 (1991) pp. 23-26. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv138i1p4bwm/