@article{TMF_1983_57_2_a7,
     author = {P. N. Brusov and V. N. Popov},
     title = {Collective excitations in the superfluid $A$~and $B$~phases of~$\operatorname{He}^3$ in an electric field},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {249--256},
     year = {1983},
     volume = {57},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_57_2_a7/}
}