%0 Journal Article %A A. Martínez-Finkelshtein %A E. A. Rakhmanov %A S. P. Suetin %T Variation of the equilibrium energy and the $S$-property of stationary compact sets %J Sbornik. Mathematics %D 2011 %P 1831-1852 %V 202 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2011_202_12_a4/ %G en %F SM_2011_202_12_a4