%0 Journal Article
%A I. V. Stasyuk
%A O. V. Velichko
%T Bose--Einstein condensation in the~excited band and the~energy spectrum of the~Bose--Hubbard model
%J Teoretičeskaâ i matematičeskaâ fizika
%D 2011
%P 571-583
%V 168
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_2011_168_3_a15/
%G ru
%F TMF_2011_168_3_a15