Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://inhabitat.com/zvi-hechers-hivelike-ramot-polin-housing-complex-is-an-ambitious-failed-experiment-in-israel/
https://collabcubed.com/2013/12/06/zvi-hecker-ramot-housing/
https://es.pinterest.com/pin/497366352576259409/
http://www.zvihecker.com
http://amagazine.com.au/1972-avant-garde-apartments-jerusalem/