TY - JOUR AU - S. Czerwik TI - On the existence of a Lipschitz solution of a functional equation JO - Matematic̀Œki vesnik PY - 1976 SP - 49 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MV_1976_28_1_a5/ ID - MV_1976_28_1_a5 ER -