[1] | Reng N,Eppich B.Opt & Quant Electron,19921 24(9);973-992 |
[2] | Sun Nianchun.Deng Chongjun.Cheng jie et al.Laser Technology.1992:16(5):298-301 |
[3] | Lü Beida.Chinese Journal of Quantum Electronics.1990;7(2):136-145 |
[4] | Lü Beida.Laser Optics.2th ed.Chengdu;Sichuan Univesity Press.1992:282 |