@article{10_4064_cm_38_1_103_110,
     author = {M. Kisielewicz},
     title = {On the non-convergence of successive approximations in the {Darboux} problem for the equation $z''_{xy}=f(x,y,z)$},
     journal = {Colloquium Mathematicum},
     pages = {103--110},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1977},
     doi = {10.4064/cm-38-1-103-110},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-38-1-103-110/}
}