TY - JOUR AU - Sizer, Walter S. TI - Representations of group and semigroup actions JO - Czechoslovak Mathematical Journal PY - 1984 SP - 84 EP - 91 VL - 34 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1984.101927/ DO - 10.21136/CMJ.1984.101927 LA - en ID - 10_21136_CMJ_1984_101927 ER -