Glushchenko, Anton, Michail Kovalevsky, and Valentina Matskevych. “Spectra of Collective Excitations and Low-Frequency Asymptotics of Green’s Functions in Uniaxial and Biaxial Ferrimagnetics”. East European Journal of Physics0, no. 1 (March 14, 2019): 46-54. Accessed April 25, 2024. https://periodicals.karazin.ua/eejp/article/view/12398.