Horst Hansen
William Albert Litle
Félix Candela
IASS Symposium on Folded Plates and Prismatic Structures Vienna 1970.
IASS International Symposium on Prefabricated Shells (1973 Haifa, Israel)
Paul Conil
Symposium on Concrete Shell Roof Construction London 1952.
Unknown Author
Heinz Isler
Sergio Pone
Paul Clinton Echols
Muḥammad Faraj
Jürgen Joedicke
Michael Barnes
John F. Abel
Maria E. Moreyra Garlock
Princeton University. Art Museum.
J. Margarit
Berthold Burkhardt
Chilton, John