%0 Journal Article %A A. A. Gevorgyan %T About irradiation absorption anomalies effects in the media with helical periodical structure %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2000 %P 67-72 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2000_1_a8/ %G ru %F UZERU_2000_1_a8