2Woo YA, Kim HJ, Chu J. Identification of herbal inedicines using pattem recongnition techniques with near infrared reflectance spectra [J].Microchem J, 1999, 63 ( 1 ): 61 - 67.
3Woo YA, Kim HJ, Chu J, et al. Discrimination of herbal medicines according to geographical origin with near - infrard reflectance spectroscopy and spec -troscopy and pattern recognition techniques [J]. J Phanmaceut Biomed,1999, 21 (2): 407 -413.