Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://en.wikipedia.org/wiki/Joseph_Allen_Stein
https://www.re-thinkingthefuture.com/know-your-architects/a299-life-and-works-of-joseph-allen-stein/
https://www.stirworld.com/inspire-people-ode-to-steinabad-joseph-allen-steins-affair-with-light-landscape-and-architecture
http://www.getdomainvids.com/keyword/allen%20stein/
http://www.sfgate.com/bayarea/article/Architectural-idealist-Modernist-Joseph-Allen-2604585.php
http://www.youtube.com/watch?v=nDcdBI5uHWg