[2] [2] Wright J A, Birkett M D, Gambino M J T. TAPPI Journal, 1990, 73(8): 164.

[3] [3] Schimleck L R, Michell A J, Raymond C A, et al. Canadian Journal of Forest Research, 1999, 29(2): 194.

[4] [4] Schimleck L R, Evans R. IAWA Journal, 2002, 3(3): 217.

[5] [5] Thumm A, Meder R. Journal of Near Infrared Spectroscopy, 2001, 9(2): 117.

[6] [6] Kelley S S, Rials T G, Groom L R, et al. Holzforschung, 2004, 58(3): 252.

[7] [7] Schimleck L R, Evans R. IAWA Journal, 2002, 23(3): 225.

[8] [8] Evans R, Ilic J. Forest products journal, 2001, 51(3): 53.

[9] [9] Tsuchikawa S, Inoue K, Noma J. Journal of Wood Science, 2003, 49(1): 29.

[10] [10] Sandberg K, Sterley M. European Journal of Forest Research, 2009, 128(5): 475.

[11] [11] Cooper P A, Jeremic D, Radivojevic S, et al. Canadian Journal of Forest Research, 2011, 41(11): 2150.

[12] [12] Bokobza L. Journal of Near Infrared Spectroscopy, 1998, 6(1): 3.