https://www.flickr.com/people/univ_alcala/ publication date: 30 September 2011 described at URL: https://www.flickr.com/photos/univ_alcala/6197217549/ operator:
Commons Attribution-Share Alike 2.0 truetrue 5 October 2011 English operator: Flickr described at URL: https://www.flickr.com/photos/univ_alcala/6197734210