TY  - GEN
AU  - Karpilovsky, Gregory [ed.]
ED  - International Conference on Group and Semigroup Rings
TI  - Group and semigroup rings: proceedings..
U1  - 512.22 
PY  - 1986///
CY  - Amsterdam
PB  - North-Holland
KW  - Group rings -- Cong
KW  - Semigroups -- Cong
ER  -