[1] Manetas Y, Grammatikopoulos G, Kyparissis A. Journal of Plant Physiology, 1998, 153: 3.
[4] Gerrit Polder, Gerie W A M, Van Der Heijden, et al. J. Near Infrared Spectroscopy, 2003, 11 (3): 193.
[7] Brogea N H, Leblancb E. Remote Sensing of Environment, 2000, 76: 156.
[8] Moses Azong Cho, Andrew K Skidmore. Remote Sensing of Environment, 2006, 101: 181.