Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1994_338_5_a4, author = {S. A. Lomov}, title = {Exactly solvable singularly perturbed problems}, journal = {Doklady Akademii Nauk}, pages = {595--597}, publisher = {mathdoc}, volume = {338}, number = {5}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1994_338_5_a4/} }
S. A. Lomov. Exactly solvable singularly perturbed problems. Doklady Akademii Nauk, Tome 338 (1994) no. 5, pp. 595-597. http://geodesic.mathdoc.fr/item/DAN_1994_338_5_a4/