1. H.I. Laursen, R.P. Shubinski, R.W. Clough, Dynamic matrix analysis of framed structures, Proceedings of the Fourth U.S. National Congress on Applied Mechanics, 1962, pp. 99–105.
2. Vibrations of Timoshenko beams and frameworks;Cheng;Journal of Structural Engineering—ASCE,1970
3. Vibration of frame structures according to the Timoshenko theory;Wang;Journal of Sound and Vibration,1971
4. Natural frequencies of frames with axially loaded Timoshenko members;Howson;Journal of Sound and Vibration,1973
5. A compact method for computing the eigenvalues and eigenvectors of plane frames;Howson;Advances in Engineering Software and Workstations,1979