TY - JOUR AU - W. Żelazko TI - On permanently singular elements in commutative m-convex locally convex algebras JO - Studia Mathematica PY - 1970 SP - 181 EP - 190 VL - 37 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-37-2-181-190/ DO - 10.4064/sm-37-2-181-190 LA - en ID - 10_4064_sm_37_2_181_190 ER -