%0 Journal Article %A Tilgner, Hans %T A class of solvable Lie groups and their relation to the canonical formalism %J Annales de l'I.H.P. Physique théorique %D 1970 %P 103-127 %V 13 %N 2 %I Gauthier-Villars %U http://geodesic.mathdoc.fr/item/AIHPA_1970__13_2_103_0/ %G en %F AIHPA_1970__13_2_103_0