(1)
A. A. Isayev, M. Yu. Kovalevsky, and S. V. Peletminsky, On hydrodynamic theory of magnets with strong exchange interaction, Low Temp. Phys. 23, (1997) [Fiz. Nizk. Temp. 23, 696-711, (1997)] DOI: https://doi.org/10.1063/1.593418.