Theoretical Study of Localized Spin Waves in a Ferrimagnet with Impurities O. Nagai, M. Kang, M. Tomita, Y. Yamada et H. T. DiepJ. Phys. IV France, 07 C1 (1997) C1-639-C1-640DOI: https://doi.org/10.1051/jp4:19971264
