“About The 40Th Birthday”.
[red. | sydneyoperahouse.com]
“Young Danish architects, designers and artists invited to celebrate Jorn Utzon’s Sydney Opera House this October”.
[red. | worldarchitecturenews.com]
The Sydney Opera House imagecredits Bjarte Sorensen CC BY-SA 3.0
Sydney Opera House sito The Building
40th Sidney Opera House imagecredits sydneyoperahouse.com