%0 Journal Article
%A S. A. Nazarov
%T Opening a~gap in the essential spectrum of the elasticity problem in a~periodic semi-layer
%J Algebra i analiz
%D 2009
%P 166-204
%V 21
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2009_21_2_a6/
%G ru
%F AA_2009_21_2_a6