TY  - BOOK
AU  - Pollak,G.
TI  - Algebraic theory of semigroups
SN  - 0444852824
PY  - 1979///
CY  - Amsterdam
PB  - North-Holland
KW  - Semigroups
KW  - Congresses
N1  - '... contains the proceedings of a conference ...  held  in Szeged from August 23 to August 26, 1976' - Preface
ER  -