@article{DAN_1968_182_5_a0,
     author = {Sh. A. Alimov},
     title = {The summation of eigenfunction series},
     journal = {Doklady Akademii Nauk},
     pages = {991--992},
     publisher = {mathdoc},
     volume = {182},
     number = {5},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_5_a0/}
}