Bar’yakhtar, V. G., B. A. Ivanov, O. N. Golubjeva, and A. D. Sukhanov. “Phenomenological Theory of Relaxation in Two-Sublattice Ferrite”. Ukrainian Journal of Physics, vol. 58, no. 12, Oct. 2018, p. 1149, doi:10.15407/ujpe58.12.1149.