Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1973_212_6_a8, author = {Kh. Kh. Murtazin}, title = {The continuous spectrum of second order differential operators}, journal = {Doklady Akademii Nauk}, pages = {1301--1304}, publisher = {mathdoc}, volume = {212}, number = {6}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_6_a8/} }
Kh. Kh. Murtazin. The continuous spectrum of second order differential operators. Doklady Akademii Nauk, Tome 212 (1973) no. 6, pp. 1301-1304. http://geodesic.mathdoc.fr/item/DAN_1973_212_6_a8/