Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1964__153_161116, author = {R. HALIN}, title = {Bemerkungen \"uber ebene {Graphen.}}, journal = {Mathematische Annalen}, pages = {38--46}, publisher = {mathdoc}, volume = {153}, year = {1964}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MAN_1964__153_161116/} }
R. HALIN. Bemerkungen über ebene Graphen.. Mathematische Annalen, Tome 153 (1964), pp. 38-46. http://geodesic.mathdoc.fr/item/MAN_1964__153_161116/