TY - JOUR AU - Jovan D. Kečkić TI - Commutative Weak Generalized Inverses of a Square Matrix and some Related Matrix Equations JO - Publications de l'Institut Mathématique PY - 1985 SP - 39 VL - _N_S_38 IS - 52 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PIM_1985_N_S_38_52_a7/ LA - en ID - PIM_1985_N_S_38_52_a7 ER -