1. Sheng, H.C., The general solution of elastic dynamics, Nature Journal, Shanghai, Vol. 7, No. 8 (1984), 633. (in Chinese)
2. Shen, H.C., The fission of spectum line of monochoromatic clastic wave, Applied Mathematics and Mechanics, Vol. 5, No. 4 (1984).
3. Zhen, J.Y., quantum Mechanics, Science Press (1982), 578. (in Chinese)
4. Dirac, P.A.M., The Principles of Quantum Mechanics, Oxford (1958).
5. Cai, J.H., et al, Green Function Theory in Quantum Statistics, Science Press (1982), 21. (in Chinese)