Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1975_221_1_a5, author = {I. Ya. Oleksiv}, title = {On the area of a simple surface}, journal = {Doklady Akademii Nauk}, pages = {30--31}, publisher = {mathdoc}, volume = {221}, number = {1}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_1_a5/} }
I. Ya. Oleksiv. On the area of a simple surface. Doklady Akademii Nauk, Tome 221 (1975) no. 1, pp. 30-31. http://geodesic.mathdoc.fr/item/DAN_1975_221_1_a5/