@article{DAN_1991_316_5_a20,
     author = {L. L. Pitaevskaya and A. A. Popov},
     title = {Sound velocity in helium-carbon dioxide mixtures at high pressures},
     journal = {Doklady Akademii Nauk},
     pages = {1112--1116},
     publisher = {mathdoc},
     volume = {316},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_5_a20/}
}