%0 Journal Article %A A. A. Arsen'ev %T Estimate of the critical density of Bose-Einstein condensation in a~periodic potential %J Teoretičeskaâ i matematičeskaâ fizika %D 1983 %P 156-160 %V 55 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1983_55_1_a15/ %G ru %F TMF_1983_55_1_a15