Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1971__75_177540, author = {Fritz Hohenberg}, title = {\"Uber den {Zentralri{\ss}} des {Torus.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {123--135}, publisher = {mathdoc}, volume = {75}, year = {1971}, zbl = {0215.50204}, url = {http://geodesic.mathdoc.fr/item/MOMA_1971__75_177540/} }
Fritz Hohenberg. Über den Zentralriß des Torus.. Monatshefte für Mathematik, Tome 75 (1971), pp. 123-135. http://geodesic.mathdoc.fr/item/MOMA_1971__75_177540/