Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1995_342_2_a4, author = {A. M. Sedletskii}, title = {Systems of exponentials with a separable real spectrum that are}, journal = {Doklady Akademii Nauk}, pages = {165--166}, publisher = {mathdoc}, volume = {342}, number = {2}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1995_342_2_a4/} }
A. M. Sedletskii. Systems of exponentials with a separable real spectrum that are. Doklady Akademii Nauk, Tome 342 (1995) no. 2, pp. 165-166. http://geodesic.mathdoc.fr/item/DAN_1995_342_2_a4/