%0 Journal Article %A Yu. A. Eremin %A N. V. Orlov %T Quasisolution of the problems of acoustical waves difraction on the fine 3-dimensional screens %J Matematičeskoe modelirovanie %D 1990 %P 102-109 %V 2 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1990_2_6_a10/ %G ru %F MM_1990_2_6_a10