@article{DAN_1966_167_5_a0,
     author = {M. G. Gasymov and B. M. Levitan},
     title = {The inverse problem for the {Dirac} system},
     journal = {Doklady Akademii Nauk},
     pages = {967--970},
     publisher = {mathdoc},
     volume = {167},
     number = {5},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_167_5_a0/}
}