[1] X. Zhang and M. Lewis, Limnology and Oceanography 47, 1273 (2002).
[2] J. S. Zhang, J. K. Liu, Y. A. Zhang, B. J. Ji, and C. D. Sun, Journal of Xi'an Institute of Technology (in Chinese) 23, 1 (2003).
[3] J. A. Wang, X. Z. Jiang, Z. G. Ma, and S. G. Zong, Laser Technol. (in Chinese) 29, 205 (2005).
[4] Z. R. Li, J. F. Liu, and Z. F. Deng, Acta Photon. Sin. (in Chinese) 35, 1417 (2006).
[5] J. S. Zhang, J. H. He, B. J. Ji, and L. Y. Chen, Acta Photon. Sin. (in Chinese) 34, 1275 (2005).
[6] L. P. Su, W. J. Zhao, D. M. Ren, and X. Y. Hu, Proc. SPIE 6595, 659524 (2007).