%0 Journal Article %A Filippakis, Michael E. %T Periodic solutions for systems with nonsmooth and partially coercive potential %J Archivum mathematicum %D 2006 %P 225-232 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2006__42_3_a2/ %G en %F ARM_2006__42_3_a2