@article{BUMI_1957_3_12_3_a1,
     author = {Vincensini, Paul},
     title = {Sur la d\'eformation de certains r\'eseaux isogonaux d'une  surface.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {377--384},
     publisher = {mathdoc},
     volume = {Ser. 3, 12},
     number = {3},
     year = {1957},
     zbl = {0078.35102},
     mrnumber = {92180},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1957_3_12_3_a1/}
}