1. Analytical Methods in Rotor Dynamics;Dimarogonas,1983
2. Coupled longitudinal and bending vibrations of a rotating shaft with an open crack;Papadopoulos;Journal of Sound and Vibration,1987
3. C.A. Papadopoulos, Coupled vibrations of cracked shafts. 〈http://thesis.Ekt.gr/0551〉, 1987, pp. 1–235 (in Greek).
4. The Stress Analysis of Cracks Handbook, Paris Productions;Tada,1973
5. A cracked column under compression;Okamura;Engineering Fracture Mechanics,1969