Sabirov, L., D. Semenov, and Kh. Khaydarov. 2019. “Negative Dispersion of High-Frequency Sound Velocity in Aqueous Solutions of Non-Electrolyte in a Vicinity of the Singular Point Concentration”. Ukrainian Journal of Physics 60 (9), 872. https://doi.org/10.15407/ujpe60.09.0872.