@article{ZVMMF_1964_4_5_a7,
     author = {A. A. Petroff and Yu. P. Popov and Yu. V. Pukhnachev},
     title = {Evaluation of the proper vibrations of a fluid in a fixed vessel by the variational method},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {880--895},
     publisher = {mathdoc},
     volume = {4},
     number = {5},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1964_4_5_a7/}
}