In 2007, he was elected as member of the [[CENTR]] Board of Directors, and his mandate was renewed in 2009.<ref>[http://www.terena.org/about/people/p%C3%A9rez.html Terena]</ref> | In 2007, he was elected as member of the [[CENTR]] Board of Directors, and his mandate was renewed in 2009.<ref>[http://www.terena.org/about/people/p%C3%A9rez.html Terena]</ref> |