Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1981__36_141266, author = {Christian Blatter}, title = {\"Uber {Kurven} konstanter {Breite.}}, journal = {Elemente der Mathematik}, pages = {105--115}, publisher = {mathdoc}, volume = {36}, year = {1981}, language = {de}, url = {http://geodesic.mathdoc.fr/item/ELMA_1981__36_141266/} }
Christian Blatter. Über Kurven konstanter Breite.. Elemente der Mathematik, Tome 36 (1981), pp. 105-115. http://geodesic.mathdoc.fr/item/ELMA_1981__36_141266/