EXCHANGE SPIN WAVES AND THEIR MANIFESTATION IN TWO-MAGNON ABSORPTION AND RAMAN SCATTERING V. V. Eremenko, S. A. Zvyagin, Yu. G. Pashkevich, V. V. Pishko, V. L. Sobolev et S. A. FedorovJ. Phys. Colloques, 49 C8 (1988) C8-913-C8-914DOI: https://doi.org/10.1051/jphyscol:19888415