Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1971_9_3_a11, author = {Kh. Kh. Murtazin}, title = {Expansions in characteristic functions of the nonself-adjoint {Schr\"odinger} operator}, journal = {Matemati\v{c}eskie zametki}, pages = {333--342}, publisher = {mathdoc}, volume = {9}, number = {3}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1971_9_3_a11/} }
Kh. Kh. Murtazin. Expansions in characteristic functions of the nonself-adjoint Schr\"odinger operator. Matematičeskie zametki, Tome 9 (1971) no. 3, pp. 333-342. http://geodesic.mathdoc.fr/item/MZM_1971_9_3_a11/