Ruck, Nancy, Øyvind  Aschehoug, Sirri  Aydinli, Jens  Christoffersen, Gilles  Courret, Ian  Edmonds, Roman  Jakobiak, Martin  Kischkoweit-Lopin, Martin  Klinger, Eleanor S Lee, Laurent  Michel, Jean-Louis  Scartezzini, and Stephen E Selkowitz. Daylight in Buildings. A Source Book on Daylighting Systems and Components. 2001. LBNL-47493.