%0 Journal Article %A V. S. Vladimirov %T On the theory of linear passive systems %J Doklady Akademii Nauk %D 1969 %P 1246-1249 %V 186 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_186_6_a2/ %G ru %F DAN_1969_186_6_a2