TY  - BOOK
AU  - Polish Academy of Sciences, Institution of Mathematics
AU  - Balcerzyk, Stanislaw ; ed.
TI  - Topics in algebra; proceedings of the 31st semester, held at the Stefan Banach International Mathematical Center in Warsaw from Feb. 15 June 15, 1988
T2  - Banach Center Publications
U1  - 512 
PY  - 1990///
CY  - Warszawa
PB  - Polish Scientific Publishers
ER  -