Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://www.arcspace.com/features/alsop-architects/
http://www.npgprints.com/image/54279/steve-speller-william-allen-alsop
http://www.npg.org.uk/collections/search/portraitLarge/mw71661/William-Allen-Alsop