Artikel Jurnal
Russel Sage Foundation, 2000
Buku Teks
editors, Sasha Pirker, Architektur Zentrum Wien
Birkhauser, 1999
Buku Teks
Tietz, Jurgen, 1964-, author
H.F. Ullmann, 2013
Buku Teks
Schaller, Michael, author
Oxford University press, 1979
Buku Teks