Spectrum and Attenuation of Non-Linear Surface Magnetostatic Spin Waves in Ferrite Films A. V. Kozhevnikov, Yu. A. Filimonov et S. A. NikitovJ. Phys. IV France, 07 C1 (1997) C1-401-C1-402DOI: https://doi.org/10.1051/jp4:19971162