Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1962__66_177180, author = {Gert Sabidussi}, title = {Minimal {Isthmoids.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {346--350}, publisher = {mathdoc}, volume = {66}, year = {1962}, zbl = {0108.18401}, url = {http://geodesic.mathdoc.fr/item/MOMA_1962__66_177180/} }
Gert Sabidussi. Minimal Isthmoids.. Monatshefte für Mathematik, Tome 66 (1962), pp. 346-350. http://geodesic.mathdoc.fr/item/MOMA_1962__66_177180/