%0 Journal Article
%A L. L. Pitaevskaya
%A B. E. Kanishchev
%T Ultrasound propagation velocity in nitrogen – methane mixtures under pressures up to $4$ kbars
%J Doklady Akademii Nauk
%D 1976
%P 1345-1346
%V 229
%N 6
%U http://geodesic.mathdoc.fr/item/DAN_1976_229_6_a17/
%G ru
%F DAN_1976_229_6_a17