%0 Journal Article
%A 
						Camelia Pop
%A Anania Aron
%T Drift-free left invariant control system on G4 with fewer controls than state variables
						
%J Analele Universităţii "Ovidius" Constanţa Seria Matematică
%D 2009
%V XVII
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ASUO_2009_XVII_2_a18/
%F ASUO_2009_XVII_2_a18