@article{10_14708_cm_v47i2_5243,
     author = {Remigiusz Wojciechowski},
     title = {Differential-functional {Goursat} problem},
     journal = {Commentationes Mathematicae},
     pages = { 127--140},
     publisher = {mathdoc},
     volume = {47},
     number = {2},
     year = {2007},
     doi = {10.14708/cm.v47i2.5243},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v47i2.5243/}
}