TY  - JOUR
AU  - Hill, Paul
TI  - Criteria for Total Projectivity
JO  - Canadian journal of mathematics
PY  - 1981
SP  - 817
EP  - 825
VL  - 33
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-063-x/
DO  - 10.4153/CJM-1981-063-x
ID  - 10_4153_CJM_1981_063_x
ER  -