TY  - BOOK
AU  - Jurgensen,H.(Helmut).
AU  - Petrich,M.
AU  - Weinert,H.J.(Hanns Joachim).
TI  - Semigroups: proceedings of a conference held oberwolfach, Germany December, 16-21, 1978 
PY  - 1981///
CY  - Berlin
PB  - Springer-Verlag
KW  - Semigroups
KW  - Congresses
N1  - Includes bibliographies
ER  -