%0 Journal Article %A M. Yu. Kovalevsky %T Quasi-averages in the~solution of the~classification problem for equilibriums of condensed media with %J Teoretičeskaâ i matematičeskaâ fizika %D 2009 %P 290-303 %V 160 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2009_160_2_a4/ %G ru %F TMF_2009_160_2_a4