TY - JOUR AU - J. Bryszewski AU - Lech Górniewicz TI - Multi-valued maps of subsets of Euclidean spaces JO - Fundamenta Mathematicae PY - 1975 SP - 233 EP - 251 VL - 90 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-90-3-233-251/ DO - 10.4064/fm-90-3-233-251 LA - en ID - 10_4064_fm_90_3_233_251 ER -