Voir la notice de l'article provenant de la source European Digital Mathematics Library
@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/} }
W. Scherrer. Die Grundgleichungen der Flächentheorie II.. Commentarii mathematici Helvetici, Tome 32 (1957), pp. 73-84. http://geodesic.mathdoc.fr/item/CMH_1957__32_139146/