Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1983_19_9_a10, author = {E. Kh. Khristov}, title = {Spectral properties of operators generating equations of {KdV} type}, journal = {Differencialʹnye uravneni\^a}, pages = {1548--1557}, publisher = {mathdoc}, volume = {19}, number = {9}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1983_19_9_a10/} }
E. Kh. Khristov. Spectral properties of operators generating equations of KdV type. Differencialʹnye uravneniâ, Tome 19 (1983) no. 9, pp. 1548-1557. http://geodesic.mathdoc.fr/item/DE_1983_19_9_a10/