TY - JOUR AU - Hu, Thakyin TI - Fixed Point Theorems for Multi-Valued Mappings JO - Canadian mathematical bulletin PY - 1980 SP - 193 EP - 197 VL - 23 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1980-026-2/ DO - 10.4153/CMB-1980-026-2 ID - 10_4153_CMB_1980_026_2 ER -