%0 Journal Article %A Michel, Horst %T Support as an invariant for dynamical systems %J Mathematica slovaca %D 1980 %P 19-30 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1980__30_1_a2/ %G en %F MASLO_1980__30_1_a2