%0 Journal Article %A V. L. Sobolev %A B. I. Khudik %T High-frequency magnetic susceptibility of~an~antiferromagnet with magnetic anisotropy of~the easy-plane type %J Teoretičeskaâ i matematičeskaâ fizika %D 1980 %P 132-138 %V 45 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1980_45_1_a12/ %G ru %F TMF_1980_45_1_a12