TY - JOUR AU - W. OkrasiƄski TI - On the existence and uniqueness of non-negative solutions of a certain non-linear convolution equation JO - Annales Polonici Mathematici PY - 1979 SP - 61 EP - 72 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-36-1-61-72/ DO - 10.4064/ap-36-1-61-72 LA - en ID - 10_4064_ap_36_1_61_72 ER -