TY - JOUR AU - A. Alexiewicz TI - On differentiation of vector-valued functions JO - Studia Mathematica PY - 1950 SP - 185 EP - 196 VL - 11 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-11-1-185-196/ DO - 10.4064/sm-11-1-185-196 LA - en ID - 10_4064_sm_11_1_185_196 ER -