Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
https://www.pinterest.es/pin/556898310158514371/
https://www.pinterest.es/pin/490751690629494329/
https://www.architecture.com/image-library/ribapix/gallery-product/poster/design-for-walnut-tree-farm-or-bannut-tree-house-or-bannut-farm-house-castlemorton-worcestershire-fo/posterid/RIBA94209.html
https://www.pinterest.es/pin/83879611789796778/
http://bcharchive.org.uk/houses/bannut-tree-2.html