TY  - JOUR
AU  - Cheatham, Thomas
TI  - Direct Sums of Torsion-Free Covers
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 1002
EP  - 1005
VL  - 25
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-107-x/
DO  - 10.4153/CJM-1973-107-x
ID  - 10_4153_CJM_1973_107_x
ER  -