Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{BAG_1985__19_138301, author = {K\'AROLY BEZDEK and Istv\'an Jo\'o}, title = {Stufenkonvexit\"at in der {Geometrie}}, journal = {Beitr\"age zur Algebra und Geometrie}, pages = {169--176}, publisher = {mathdoc}, volume = {19}, year = {1985}, zbl = {0579.52002}, url = {http://geodesic.mathdoc.fr/item/BAG_1985__19_138301/} }
KÁROLY BEZDEK; István Joó. Stufenkonvexität in der Geometrie. Beiträge zur Algebra und Geometrie, Tome 19 (1985), pp. 169-176. http://geodesic.mathdoc.fr/item/BAG_1985__19_138301/