@article{DAN_1964_154_2_a2,
     author = {M. G. Gasymov},
     title = {On the inverse problem for a {Sturm--Liouville} equation},
     journal = {Doklady Akademii Nauk},
     pages = {254--257},
     publisher = {mathdoc},
     volume = {154},
     number = {2},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_2_a2/}
}