TY - JOUR AU - T. Álvarez TI - Characterisations of open multivalued linear operators JO - Studia Mathematica PY - 2006 SP - 205 EP - 212 VL - 175 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm175-3-1/ DO - 10.4064/sm175-3-1 LA - en ID - 10_4064_sm175_3_1 ER -