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@article{DAN_1987_296_5_a5, author = {L. A. Sakhnovich}, title = {Spectral problems for systems of equations on the axis}, journal = {Doklady Akademii Nauk}, pages = {1052--1056}, publisher = {mathdoc}, volume = {296}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_296_5_a5/} }
L. A. Sakhnovich. Spectral problems for systems of equations on the axis. Doklady Akademii Nauk, Tome 296 (1987) no. 5, pp. 1052-1056. http://geodesic.mathdoc.fr/item/DAN_1987_296_5_a5/