@article{DAN_1976_229_6_a17,
     author = {L. L. Pitaevskaya and B. E. Kanishchev},
     title = {Ultrasound propagation velocity in nitrogen -- methane mixtures under pressures up to $4$ kbars},
     journal = {Doklady Akademii Nauk},
     pages = {1345--1346},
     publisher = {mathdoc},
     volume = {229},
     number = {6},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_229_6_a17/}
}