%0 Journal Article %A Tomasz Człapiński %T On existence and uniqueness of solutions of nonlocal problems for hyperbolic differential-functional equations in two independent variables %J Annales Polonici Mathematici %D 1997 %P 205-214 %V 67 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-67-3-205-214/ %R 10.4064/ap-67-3-205-214 %G en %F 10_4064_ap_67_3_205_214