[3] Passey Q R.AAPG Bulletin, 1990, 74(12): 1777.
[5] Snyder R W, Painter P C, Conauer D C. Fuel., 1983, 62: 1205.
[6] Alstadt K N, Katti D R, Katti K S. Spectrochimica Acta Part A, 2012, 89: 105.
[8] Romeo M J, Adams M J, Hind A R, et al. Journal of Near Infrared Spectroscopy, 2002, 10(3): 223.