Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://en.wikipedia.org/wiki/Owen_Williams_(engineer)
http://www.engineering-timelines.com/who/Williams_O/williamsOwen4.asp
http://a2d-architecture.blogspot.com.es/2012/05/feature-sir-evan-owen-williams-let.html