Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://en.wikipedia.org/wiki/File:Building,_Pall_Mall_-_DSC04234.JPG
http://www.british-history.ac.uk/report.aspx?compid=40704
http://www.british-history.ac.uk/report.aspx?compid=40705