TY  - JOUR
AU  - Vermeer, Hans
AU  - Wattel, Evert
TI  - Projective Elements in Categories with Perfect θ-Continuous Maps
JO  - Canadian journal of mathematics
PY  - 1981
SP  - 872
EP  - 884
VL  - 33
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-068-6/
DO  - 10.4153/CJM-1981-068-6
ID  - 10_4153_CJM_1981_068_6
ER  -