@article{DAN_1957_114_5_a10,
     author = {V. P. Maslov},
     title = {Degeneration on passing from a discrete spectrum to a continuous one and transition from quantum mechanics to classical mechanics},
     journal = {Doklady Akademii Nauk},
     pages = {957--960},
     publisher = {mathdoc},
     volume = {114},
     number = {5},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_5_a10/}
}