Suitability of different multivariate analysis methods for monitoring leaf N accumulation in winter wheat using in situ hyperspectral data. - Bin-Bin Guo; Ya-Lan Feng; Chao Ma; Jun Zhang; Xiao Song; Meng-Yuan Wang; De-Hui Sheng; Wei Feng; Nian-yuan Jiao (Comput. Electron. Agric., 2022)