Hansen, A.K. and Kudeyt, M. 2019. Controllability of affine systems on free Nilpotent Lie groups Gm,?. Proyecciones (Antofagasta, On line). 38, 3 (Aug. 2019), 499-509. DOI:https://doi.org/10.22199/issn.0717-6279-2019-03-0032.