%0 Journal Article
%A Yu. M. Davydov
%T Formation of a zone with increased concentration of particles under focused

%J Doklady Akademii Nauk
%D 1990
%P 813-815
%V 315
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_315_4_a9/
%G ru
%F DAN_1990_315_4_a9