[6] Flecher Philip E, Cooper John B, Vess Thomas M, et al. Spectrochimica Acta Part A, 1996, 52(10): 1235.
[7] Ku Min-Sik, Chung Hoeil. Bulletin of the Korean Chemical Society, 1999, 20(2): 159.
[8] Sharma Shiv K, Misra Anupam K, Sharma Bhavna. Spectrochimica Acta Part A, 2005, 61: 2404.
[10] Cooper John Britain. Chemometrics and Intelligent Laboratory Systems, 1999, 46: 231.
[12] Suykens J A K, Brabanter J De, Lukas L, et al. Neurocomputing, 2002, 48: 85.
[13] Hampel F R, Ronchetti E M, Rousseeuw P J, et al. Robust Statistics: The Approach Based on Influence Functions. New York: Wiley, 1986.