@article{700840,
title = {Projective covers in certain categories of topological spaces},
booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
series = {GDML\_Books},
publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
address = {Praha},
year = {1967},
pages = {52-55},
zbl = {0172.24402},
url = {http://dml.mathdoc.fr/item/700840}
}
Banaschewski, B. Projective covers in certain categories of topological spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books, (1967), pp. 52-55. http://gdmltest.u-ga.fr/item/700840/