%0 Journal Article %A Ragusa, Maria Alessandra %A Zamboni, Pietro %T A potential theoretic inequality %J Czechoslovak Mathematical Journal %D 2001 %P 55-65 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2001__51_1_a5/ %G en %F CMJ_2001__51_1_a5