TY - JOUR AU - Christian Berg TI - On the potential operators associated with a semigroup JO - Studia Mathematica PY - 1974 SP - 111 EP - 113 VL - 51 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-51-2-111-113/ DO - 10.4064/sm-51-2-111-113 LA - en ID - 10_4064_sm_51_2_111_113 ER -