Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_259_1_a8, author = {M. Otelbaev}, title = {On asymptotic formulas for eigenvalues of the {Sturm--Liouville} operator}, journal = {Doklady Akademii Nauk}, pages = {42--44}, publisher = {mathdoc}, volume = {259}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a8/} }
M. Otelbaev. On asymptotic formulas for eigenvalues of the Sturm--Liouville operator. Doklady Akademii Nauk, Tome 259 (1981) no. 1, pp. 42-44. http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a8/