I have a great satisfaction because the architects from the Architecture-Studio in Paris, who designed the building first thought it was already a finished work and nothing could possibly be added to it. When the idea of placing the glass sphere in the very center of Agora arose, they were surprisingly quite enthusiastic about this project. The glass sphere, together with the circular illumination turned out to be the missing complement to the work of architects.
New Glass Review 21, The Corning Museum of Glass, New York, 2000, ISSN0275-469X[6]
Durczak M., W Hanowerze, Dolny Śląsk na EXPO 2000, "Region Dolny Śląsk" (8/2000), Stowarzyszenie na Rzecz Promocji Dolnego Śląska, Wrocław, 2000, ISSN1506-2929[5]
Maluga L., Formy szklane w przestrzeni architektonicznej (nowe realizacje Urbanowiczów), Archivolta 4/2005, ISSN1506-5928[3]
Harasimowicz J., Suleja W.: Encyklopedia Wrocławia, Wydawnictwo Dolnośląskie Sp. z o.o., 2006, ISBN978-83-7384-561-9[1]
Cummings, K., Contemporary Kiln-formed Glass, London | Philadelphia, A & C Black Publishers Ltd. | University of Pennsylvania Press, 2009, ISBN978-1-4081-0075-2[9]
Wala, E., Szkło we współczesnej architekturze, Wydawnictwo Politechniki Śląskiej, Gliwice, 2012, ISBN978-83-7880-080-4[10]
Llewellyn D. J., The materials and processes suitable for the production of large scale three dimensional glass as exemplified in the work of Tomasz Urbanowicz, University of Wales Trinity St. David, Swansea, 2016[11]
^ abDurczak, Mirosław (31 December 2000). "Region Dolny Śląsk nr 8/2000, Wydanie Milenijne" [In Hanover, Lower Silesia at the EXPO 2000] (PDF). Region Dolny Śląsk (in Polish). 8/2000. Stowarzyszenie na Rzecz Promocji Dolnego Śląska: 27–29. ISSN1506-2929 – via Wrocław: Stowarzyszenie na Recz Promocji Dolnego Śląska.