Sabirov, L. M., D. I. Semenov, and Kh. S. 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.