TY  - JOUR
AU  - Gittings, Raymond F.
TI  - Some Results on Weak Covering Conditions
JO  - Canadian journal of mathematics
PY  - 1974
SP  - 1152
EP  - 1156
VL  - 26
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-107-5/
DO  - 10.4153/CJM-1974-107-5
ID  - 10_4153_CJM_1974_107_5
ER  -