%0 Journal Article
%A A. A. Laptev
%T Spectral asymptotics of a composition of pseudodifferential operators and reflections from the boundary
%J Doklady Akademii Nauk
%D 1977
%P 800-803
%V 236
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_236_4_a4/
%G ru
%F DAN_1977_236_4_a4