%0 Journal Article
%A D.I. Borisov
%T Absence of gaps in a~lower part of the~spectrum of a~Laplacian with frequent alternation of boundary conditions in a~strip
%J Teoretičeskaâ i matematičeskaâ fizika
%D 2018
%P 225-239
%V 195
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_2018_195_2_a4/
%G ru
%F TMF_2018_195_2_a4