%0 Journal Article %A Venturi, Irene %T Rigid Two-Step Nilpotent Lie Groups relative to Multicontact Structures %J Rendiconti del Seminario Matematico della Università di Padova %D 2009 %P 99-127 %V 122 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_2009__122__99_0/ %G en %F RSMUP_2009__122__99_0