Christian J. Birkeland
- Precast prestressed "Space Mountain" highlights Walt Disney World. Dans: PCI Journal, v. 20, n. 5 (septembre 1975). (1975):
- Crown Zellerbach Pulp Mill Building. Dans: PCI Journal, v. 29, n. 3 (mai 1984). (1984):
- Riverton Heights Reservoir Seattle Washington. Dans: PCI Journal, v. 26, n. 3 (mai 1981). (1981):