@article{DAN_1979_244_3_a9,
     author = {I. V. Kavetskaya and N. N. Sibel'din and V. B. Stopachinskii and V. A. Tsvetkov},
     title = {Excitation of sound pulses in liquid $^4\mathrm{He}$ during the germanium optical pumping},
     journal = {Doklady Akademii Nauk},
     pages = {559--562},
     publisher = {mathdoc},
     volume = {244},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_244_3_a9/}
}