TY - JOUR AU - V. Lakshmikantham AU - A. R. Mitchell AU - R. W. Mitchell TI - On the existence of solutions of differential equations of retarded type in a Banach space JO - Annales Polonici Mathematici PY - 1977 SP - 253 EP - 260 VL - 35 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-35-3-253-260/ DO - 10.4064/ap-35-3-253-260 LA - en ID - 10_4064_ap_35_3_253_260 ER -