TY - JOUR AU - Horacio Porta TI - Factorable and strictly singular operators in a product space JO - Studia Mathematica PY - 1970 SP - 237 EP - 243 VL - 37 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-37-3-237-243/ DO - 10.4064/sm-37-3-237-243 LA - en ID - 10_4064_sm_37_3_237_243 ER -