%0 Journal Article %A R. L. Dobrushin %A B. S. Nakhapetian %T Strong convexity of the pressure for lattice systems of classical statistical physics %J Teoretičeskaâ i matematičeskaâ fizika %D 1974 %P 223-234 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1974_20_2_a8/ %G ru %F TMF_1974_20_2_a8