TY - JOUR AU - Bogoljub Stanković TI - The Existence And The Unicity Of Solution Of A System Of Operator Differential Equations JO - Publications de l'Institut Mathématique PY - 1969 SP - 85 VL - _N_S_09 IS - 23 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PIM_1969_N_S_09_23_a11/ ID - PIM_1969_N_S_09_23_a11 ER -