TY  - BOOK
AU  - Fossum, Robert M, et al.
AU  - 
TI  - Trivial extensions of abelian categories
T2  - Lecture Notes in Mathematics, No.0456
U1  - R  LNM.0456 
PY  - 1975///
CY  - Springer-Verlag, Berlin
KW  - Lecture Notes in Mathematics
ER  -