Observation of intrinsic spin-wave relaxation processes in a ferromagnetic material at 4.2 K Anisimov, A. N. ; Gurevich, A. G. ; Merkulov, A. I. ; Shukyurov, A. S. ; Emiryan, L. M. Abstract Publication: ZhETF Pisma Redaktsiiu Pub Date: September 1981 Bibcode: 1981ZhPmR..34..344A