@article{MAN_1996__304_4_165415,
     author = {Jean-Pierre Rosay and Lucien Chevalier},
     title = {A characterization of lines among {Lipschitz} graphs.},
     journal = {Mathematische Annalen},
     pages = {549--554},
     publisher = {mathdoc},
     volume = {304},
     number = {4},
     year = {1996},
     zbl = {0841.42009},
     url = {http://geodesic.mathdoc.fr/item/MAN_1996__304_4_165415/}
}