%0 Journal Article %A I. V. Ovchinnikov %A V. N. Konstantinov %A B. M. Kozyrev %T Additional absorption in the ESR spectra of polycrystal systems %J Doklady Akademii Nauk %D 1976 %P 1095-1097 %V 229 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_229_5_a16/ %G ru %F DAN_1976_229_5_a16