TY - JOUR AU - Vlastimil Pták TI - On a theorem of Mazur and Orlicz JO - Studia Mathematica PY - 1955 SP - 365 EP - 366 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-15-3-365-366/ DO - 10.4064/sm-15-3-365-366 LA - pl ID - 10_4064_sm_15_3_365_366 ER -