%0 Journal Article %A I. V. Arzhantsev %T On actions of reductive groups with one-parameter family %J Sbornik. Mathematics %D 1997 %P 639-655 %V 188 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1997_188_5_a0/ %G en %F SM_1997_188_5_a0