TY - JOUR AU - Karanasios, Sotirios TI - EP Elements in Rings and in Semigroups with Involution and in C*-algebras JO - Serdica Mathematical Journal PY - 2015 SP - 83 EP - 116 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SMJ2_2015_41_1_a5/ LA - en ID - SMJ2_2015_41_1_a5 ER -