1. Ya. A. Monosov, Nonlinear Ferromagnetic Resonance (Nauka, Moscow, 1971) [in Russian].
2. V. S. L’vov, Nonlinear Spin Waves (Nauka, Moscow, 1987) [in Russian].
3. P. H. Bryant, C. D. Jeffries, and K. Nakamura, Phys. Rev. A 38, 4223 (1988).
4. G. S. Kandaurova and A. E. Sviderskiĭ, Pis’ma Zh. Éksp. Teor. Fiz. 47, 410 (1988) [JETP Lett. 47, 490 (1988)].
5. B. Neite and H. Dotsch, J. Appl. Phys. 62, 648 (1987).