TY  - GEN
AU  - Enochs,Edgar E.
AU  - Jenda, Overtoun M.G.
TI  - Relative homological algebra; volume1
T2  - de Gruyter expositions in mathematics; 30
SN  - 9783110215205
U1  - 512.64 
PY  - 2011///
CY  - Berlin
PB  - Walter de Gruyter
KW  - Mathematics
ER  -