@article{bwmeta1.element.bwnjournal-article-fmv42i2p276bwm, author = {M. Fort}, title = {Category theorems}, journal = {Fundamenta Mathematicae}, volume = {41}, year = {1955}, pages = {276-288}, zbl = {0067.34303}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv42i2p276bwm} }
Fort, M. Category theorems. Fundamenta Mathematicae, Tome 41 (1955) pp. 276-288. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv42i2p276bwm/