%0 Journal Article %A K. N. Baranskii %T Excitation of hypersonic oscillations in quartz %J Doklady Akademii Nauk %D 1957 %P 517-519 %V 114 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_114_3_a17/ %G ru %F DAN_1957_114_3_a17