TY  - BOOK
AU  - University of the Witwatersrand
TI  - Group and semigroup rings: proceedings of the international conference on group and semigroup rings
T2  - North-Holland mathematics studies
U1  - 510 
PY  - 1985///
CY  - Johannesbrug
PB  - University of Witwatersrand
KW  - Group rings, congresses
KW  - Semigroups, congresses
N1  - aInternational conference on group and semigroup and rings(1985: University of the Witwatersrand
ER  -