@article{DAN_1978_239_6_a7,
     author = {O. A. Plaksina},
     title = {On a class of inverse boundary value problems for {Sturm--Liouville} operators},
     journal = {Doklady Akademii Nauk},
     pages = {1295--1297},
     publisher = {mathdoc},
     volume = {239},
     number = {6},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_239_6_a7/}
}