Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://www.essential-architecture.com/ARCHITECT/Ove_Arup__chess_ready.jpg
http://www.engineering-timelines.com/who/arup_O/arupOve2.asp
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=61195474
http://fidic.org/node/1084