TY - JOUR AU - O'Regan, Donal TI - Fixed point theory for closed multifunctions JO - Archivum mathematicum PY - 1998 SP - 191 EP - 197 VL - 34 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1998__34_1_a17/ LA - en ID - ARM_1998__34_1_a17 ER -