[4] Liu L, Cozzolino D, Cynkar W U, et al. Food Chemistry, 2008, 106(2): 781.
[5] Cozzolino D, Cynkar W U, Shah N, et al. Food Chemistry, 2011, 126(2): 673.
[6] Michele Forina, Paolo Oliveri, Johanna Smeyers-Verbeke, et al. Chemometrics and Intelligent Laboratory Systems 99, 2009, 99(2): 127.
[12] Barker M, Rayens W. Journal of Chemometrics, 2003, (17): 166.