TY  - DATA
AU  - Gordon, Robert
AU  - Green, Edward L.,
TI  - Modules with cores and amalgamations of indecomposable modules 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470400538 (online)
PY  - 1977///
CY  - Providence
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0187
ER  -