1. Carson J. R., Notes on the theory of modulation, Proceedings of the Institute of Radio Engineers, Vol. 10, No.1 (1922), pp.57-64.
2. Fisher R. K., Seidel U., Grosse G., Gfeller W. and Klinger R., A case study in resonant hydroelastic vibration: the causes of runner cracks and the solutions implemented for the Xiaolangdi hydroelectric project, 21st IAHR Symposium on Hydraulic Machinery and Systems (2002).
3. Fukuda, 2nd edition of Basic Communication Engineering (2007), pp.111-116, Morikita Publishing Co., Ltd. (in Japanese).
4. Gummer J. and Hensman P.C., A review of stay vane cracking in hydraulic turbines, Water Power and Dam Construction (1992), pp.32-42.
5. Heskestad G. and Olberts D. R., Influence of trailing edge geometry on hydraulic-turbine blade vibration resulting from vortex excitation, Journal of Engineering for Power ,Vol.82, No.2 (1960), pp.103-109, DOI:10.1115/1.3672718.