%0 Journal Article %A Masanori Koitabashi %T On Exact Actions of Unipotent Groups. %J Manuscripta mathematica %D 1995 %P 153-158 %V 87 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1995__87_4_156080/ %F MM2_1995__87_4_156080