1. The Free Transverse Vibration of Airscrew Blades, British A.R.C. Reports and Memoranda 766;Southwell,1921
2. Bending frequency of a rotating cantilever beam;Schilhansl;J. Appl. Mech. T. ASME,1958
3. Vibrational aspects of rotating turbomachinery blades;Leissa;ASME Appl. Mech. Rev.,1981
4. Analysis of turbomachine blades: a review;Ramamurti;Shock Vib. Digest,1984
5. Turbomachine blade vibration;Rao;Shock Vib. Digest,1987