Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1957__16_1_114784, author = {Hadwiger, H.}, title = {Ueber {Eibereiche} mit gemeinsamer {Treffgeraden}}, journal = {Portugaliae mathematica}, pages = {23--29}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1957}, mrnumber = {0099015}, zbl = {0081.16404}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PORMA_1957__16_1_114784/} }
Hadwiger, H. Ueber Eibereiche mit gemeinsamer Treffgeraden. Portugaliae mathematica, Tome 16 (1957) no. 1, pp. 23-29. http://geodesic.mathdoc.fr/item/PORMA_1957__16_1_114784/