@article{DAN_1987_293_2_a10,
     author = {A. A. Larin},
     title = {On spectral expansions corresponding to selfadjoint extensions of},
     journal = {Doklady Akademii Nauk},
     pages = {309--312},
     publisher = {mathdoc},
     volume = {293},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a10/}
}