@article{DAN_1989_304_2_a4,
     author = {A. S. Makin},
     title = {On the mean value formula for eigenfunctions and associated functions of the {Schr\"odinger} operator},
     journal = {Doklady Akademii Nauk},
     pages = {280--284},
     publisher = {mathdoc},
     volume = {304},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_2_a4/}
}