Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://en.wikipedia.org/wiki/Howard_Robertson_(architect)
http://www.npgprints.com/image.php?imgref=165060
http://www.bbc.co.uk/arts/yourpaintings/paintings/howard-morley-robertson-18881963-priba-mc-ra-rgm-216419