@article{DAN_1957_114_3_a17,
     author = {K. N. Baranskii},
     title = {Excitation of hypersonic oscillations in quartz},
     journal = {Doklady Akademii Nauk},
     pages = {517--519},
     publisher = {mathdoc},
     volume = {114},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_3_a17/}
}