Wittfoht, H. (1967). Considerations on the cross-sectional design of prestressed concrete bridges with reference to bridges built in 1960. Cement and Concrete Association.

Wittfoht, H. Considerations on the Cross-sectional Design of Prestressed Concrete Bridges with Reference to Bridges Built in 1960. London: Cement and Concrete Association, 1967.

Wittfoht, H. Considerations on the Cross-sectional Design of Prestressed Concrete Bridges with Reference to Bridges Built in 1960. Cement and Concrete Association, 1967.