TY - JOUR AU - H. Ugowski TI - On integro-differential equations of parabolic and elliptic type JO - Annales Polonici Mathematici PY - 1969 SP - 255 EP - 275 VL - 22 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-22-3-255-275/ DO - 10.4064/ap-22-3-255-275 LA - en ID - 10_4064_ap_22_3_255_275 ER -