TY - JOUR AU - Dariusz Miklaszewski TI - An Application of the Stiefel–Whitney Classes to the Proof of a Fixed Point Theorem for Set-Valued Mappings JO - Bulletin of the Polish Academy of Sciences. Mathematics PY - 2005 SP - 181 EP - 186 VL - 53 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ba53-2-7/ DO - 10.4064/ba53-2-7 LA - en ID - 10_4064_ba53_2_7 ER -