Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1960__34_139180, author = {Wilhelm Klingenberg}, title = {Neue {Ergebnisse} \"uber konvexe {Fl\"achen.}}, journal = {Commentarii mathematici Helvetici}, pages = {17--36}, publisher = {mathdoc}, volume = {34}, year = {1960}, zbl = {0101.14002}, url = {http://geodesic.mathdoc.fr/item/CMH_1960__34_139180/} }
Wilhelm Klingenberg. Neue Ergebnisse über konvexe Flächen.. Commentarii mathematici Helvetici, Tome 34 (1960), pp. 17-36. http://geodesic.mathdoc.fr/item/CMH_1960__34_139180/