Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
https://davidchipperfield.com/project/ninetree_village
https://www.dezeen.com/2008/11/09/ninetree-village-by-david-chipperfield/
https://es.pinterest.com/anthonythevenon/architecture/
http://www.e-architect.co.uk/china/ninetree-village
https://elcroquis.es/collections/proyectos-en-pdf/products/davidpr2?variant=32318596170