%0 Journal Article %A Edward W. Packel %T Linear problems (with extended range) have linear optimal algorithms. %J Aequationes mathematicae %D 1986 %P 18-25 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1986__31_137138/ %F AM2_1986__31_137138