%0 Journal Article %A L. M. Lyamshev %T On the determination of impedance in the acoustics of moving medium %J Doklady Akademii Nauk %D 1981 %P 74-78 %V 261 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_261_1_a18/ %G ru %F DAN_1981_261_1_a18