V. K. Chagovets, S. S. Kapuza, S. S. Sokolov, V. A. Vrakina, and T. V. Chagovets, Viscosity of concentrated superfluid mixtures ³He–⁴He when vibrating a quartz tuning fork, Low Temp. Phys. 48, (2022) [Fiz. Nyzk. Temp. 48, 757–763, (2022)] DOI: https://doi.org/10.1063/10.0013279.