@article{CMH_1957__32_139146,
     author = {W. Scherrer},
     title = {Die {Grundgleichungen} der {Fl\"achentheorie} {II.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {73--84},
     publisher = {mathdoc},
     volume = {32},
     year = {1957},
     zbl = {0078.13803},
     url = {http://geodesic.mathdoc.fr/item/CMH_1957__32_139146/}
}