1. Vibration Analysis Tables;Bishop,1956
2. Normal modes of uniform beams;Chang,1969
3. Vibration Problems in Engineering;Timoshenko,1974
4. Tables of Characteristic Functions Representing Normal Modes of Vibration of a Beam;Young;University of Texas publication, No. 4913,1949
5. Free Vibration Analysis of Beams and Shafts;Gorman,1975