TY - JOUR AU - MichaƂ Kisielewicz TI - On the nonconvergence of successive approximations in the theory of the equation $z"_{xy} = f(x, y, z, z'_x,z'_y)$ JO - Annales Polonici Mathematici PY - 1979 SP - 85 EP - 93 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-36-1-85-93/ DO - 10.4064/ap-36-1-85-93 LA - en ID - 10_4064_ap_36_1_85_93 ER -