Robert Koch
- The Medieval Castle Revival: New York Armories. In: Journal of the Society of Architectural Historians, v. 14, n. 3 (October 1955). (1955):
- American Influence Abroad, 1886 and Later. In: Journal of the Society of Architectural Historians, v. 18, n. 2 (May 1959). (1959):
- Erweiterung Betriebsbahnhof Erdberg. In: Felsbau, v. 19, n. 2 ( 2001). (2001):