1. Austmeier HF. Extension of the Commerzbank Headquarters Frankfurt/Main. In: Composite Construction in Steel and Concrete III. Proceedings of an Engineering Foundation Conference, Irsee, Germany, 1996 (in press).
2. The new Commerzbank headquarters, Frankfurt, Germany;Wise;Struct Eng, J Inst Struct Eng,1996
3. Kowalczyk RM, Sinn R, Kilmister MB, editors. Council on tall buildings and urban habitat structural systems for tall buildings. New York: McGraw-Hill, 1993.
4. Bridge RQ, Webb J. Thin walled circular concrete filled steel tubular columns. In: Composite Construction in Steel and Concrete II. Proceedings of an Engineering Foundation Conference, 1992:634–49.
5. Watson KB, O'Brien LJ. Tubular composite columns and their development in Australia. The Institution of Engineers Australia, Structural Engineering Conference, Adelaide, 1990:186–90.