TY - JOUR AU - Spakowski, Andrzej TI - On approximation of multifunctions with respect to the Vietoris topology JO - Acta Universitatis Carolinae. Mathematica et Physica PY - 1988 SP - 75 EP - 80 VL - 29 IS - 2 UR - http://geodesic.mathdoc.fr/item/AUCMP_1988_29_2_a10/ LA - en ID - AUCMP_1988_29_2_a10 ER -