TY - JOUR AU - Stanisław Kryński TI - Metrically convex functions in normed spaces JO - Studia Mathematica PY - 1993 SP - 1 EP - 11 VL - 105 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-105-1-1-11/ DO - 10.4064/sm-105-1-1-11 LA - en ID - 10_4064_sm_105_1_1_11 ER -