Julian Efren Cristiano, Domènec Puig, Miguel Angel Garcia
, ”Onwthe maximum walking speed of NAO humanoid robots”, Proceedings of XII Workshdp of Physical Agents, Albacete – España, 2011. ISBN 978-84-694-6730-5.
http://www.joph/.net/waf/index.php/wafa4af11/paper/vie /86