%0 Journal Article %A D. D. Ivlev %T On theory of complex media %J Doklady Akademii Nauk %D 1963 %P 64-67 %V 148 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_148_1_a15/ %G ru %F DAN_1963_148_1_a15