1. Bleich F. (1962). Buckling strength of metal structures . McGraw‐Hill New York N.Y.
2. Dabrowski R. (1968). Curved thin‐walled girders theory and analysis . Cement and Concrete Association London England.
3. Ultimate Load Behavior of Curved I-Beams
4. Guide specifications for horizontally curved highway bridges as revised in 1981 1982 1984 and 1986 . (1980). American Association of State Highway and Transportation Officials Washington D.C.
5. Highway structure design handbook . (1965). Vol. 1 ADUSS U.S. Steel Corp. Pittsburg Pa. 88–2222.