GU Jiao, CHEN Guo-qing, ZHANG Xiao-he, LIU Huai-bo, MA Chao-qun, ZHU Chun, LIAO Cui-cui. Classification and Year Prediction of Chinese Liquors Based on Wavelet Decomposition and Factor Analysis[J]. Spectroscopy and Spectral Analysis, 2018, 38(8): 2511