Semigroups: proceedings of a conference held oberwolfach, Germany December, 16-21, 1978 - Jurgensen, H. (Helmut).; Petrich, M. (Mario).; Weinert, H.J. (Hanns Joachim). (Berlin: Springer-Verlag, 1981)
Includes bibliographies.
gerengfre.
Keywords: Semigroups -- Congresses