TY  - JOUR
AU  - W. Kulpa
TI  - Properties of the covering type and a factorization theorem
JO  - Fundamenta Mathematicae
PY  - 1980
SP  - 161
EP  - 166
VL  - 107
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-107-3-161-166/
DO  - 10.4064/fm-107-3-161-166
LA  - en
ID  - 10_4064_fm_107_3_161_166
ER  -