@article{DAN_1965_160_2_a33,
     author = {A. I. Grigor'ev and V. A. Sipachev and A. V. Novoselova},
     title = {Vibration spectra of
},
     journal = {Doklady Akademii Nauk},
     pages = {383--386},
     publisher = {mathdoc},
     volume = {160},
     number = {2},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_2_a33/}
}