1. Curved Thin-Walled Girders, Theory and Analysis;Dabrowski,1968
2. Structural Members and Frames;Galambos,1968
3. Bending and Torsional Design in Structural Members;Heins,1975
4. Torsional properties of composite girders;Heins;AISC Engng J.,1972
5. Torsion in Structures. An Engineering Approach;Kollbrunner,1969