%0 Journal Article %A Yu. I. Bobrovnitskii %T Calculation of vibrational and acoustic fields in engineering %J Doklady Akademii Nauk %D 1989 %P 1061-1065 %V 308 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_5_a8/ %G ru %F DAN_1989_308_5_a8