Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
https://books.google.es/books?id=pWnps7ALAuIC&pg=PA174&lpg=PA174&dq=Wilhelm+Tyler+Miller&source=bl&ots=OJbSpYN1w2&sig=ACfU3U3yOOvBdwM209bSBbUzzC4YeEtLKQ&hl=es&sa=X&ved=2ahUKEwj13qjE45nmAhVM8OAKHV9bBfQQ6AEwEXoECAoQBA#v=onepage&q=Wilhelm%20Tyler%20Miller&f=false