Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1967_177_2_a5, author = {V. I. Pupko}, title = {Nonselfintersecting curves on closed surfaces}, journal = {Doklady Akademii Nauk}, pages = {272--274}, publisher = {mathdoc}, volume = {177}, number = {2}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_177_2_a5/} }
V. I. Pupko. Nonselfintersecting curves on closed surfaces. Doklady Akademii Nauk, Tome 177 (1967) no. 2, pp. 272-274. http://geodesic.mathdoc.fr/item/DAN_1967_177_2_a5/