@article{MZ_1926__24_174979,
     author = {O. Perron},
     title = {\"Uber geod\"atische rhombische {Netze} auf krummen {Fl\"achen}},
     journal = {Mathematische Zeitschrift},
     pages = {170--180},
     publisher = {mathdoc},
     volume = {24},
     year = {1926},
     zbl = {51.0547.04},
     url = {http://geodesic.mathdoc.fr/item/MZ_1926__24_174979/}
}