@article{DAN_1991_319_4_a0,
     author = {N. S. Bojinov},
     title = {Necessary and sufficient condition for the reconstruction of functions from their coefficients in the root expansion of a nonlocal {Sturm{\textendash}Liouville} operator},
     journal = {Doklady Akademii Nauk},
     pages = {777--780},
     year = {1991},
     volume = {319},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_319_4_a0/}
}