1. Skew and elevated support effects on curved bridges;Funkhouser,1972
2. A program to analyze curved girder bridges;Lavalle,1965
3. Thin Walled Elastic Beams;Vlasov,1961
4. L.C. Bell and C. P. Heins, The solution of curved bridge system using the slope deflection method. Civil Engineering Department, University of Maryland, College Park, MD.
5. Behavior of single horizontally curved girder;Heins;J. Struct. Div., ASCE,1970