%0 Journal Article %A Krupka, Demeter %A Musilová, Jana %T Hamilton extremals in higher order mechanics %J Archivum mathematicum %D 1984 %P 21-30 %V 20 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1984__20_1_a2/ %G en %F ARM_1984__20_1_a2