@article{CMH_1952__26_139037,
     author = {W. Scherrer},
     title = {Zur elementaren {Fl\"achentheorie.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {78--80},
     publisher = {mathdoc},
     volume = {26},
     year = {1952},
     zbl = {0046.15005},
     url = {http://geodesic.mathdoc.fr/item/CMH_1952__26_139037/}
}