%0 Journal Article %A I. R. Yukhnovskii %T Method of~collective variables with references system for the grand canonical ensemble %J Teoretičeskaâ i matematičeskaâ fizika %D 1989 %P 282-296 %V 79 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1989_79_2_a11/ %G ru %F TMF_1989_79_2_a11