%0 Journal Article
%A Sergey Morozov
%T Essential spectrum of multiparticle Brown-Ravenhall operators in external field
%J Documenta mathematica
%D 2008
%P 51-79
%V 13
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/241/
%R 10.4171/dm/241
%F 10_4171_dm_241