"Gutierrez Castro, Allan". London 2012. The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 2013-05-20. Retrieved 19 September 2012.
web.archive.org
"Gutierrez Castro, Allan". London 2012. The London Organising Committee of the Olympic Games and Paralympic Games Limited. Archived from the original on 2013-05-20. Retrieved 19 September 2012.
