Kiselev SI, Khmelenko VV, Lee DM. Sound propagation in liquid He in impurity-helium solids: Low-Temperature Physics and Chemistry in Cryomatrice. Fiz. Nizk. Temp. [інтернет]. 10, Вересень 2000 [цит. за 20, Червень 2025];26(9-10):874-83. доступний у: http://80.92.230.95/index.php/fnt/article/view/f26-0874e