Yao-Di, Zhu, Zou Xiao-Bo, Huang Xiao-Wei, Shi Ji-Yong, Zhao Jie-Wen, Li Yanxiao, Hao Limin, and Zhang Jianchun. 2013. “Rapid Detecting Total Acid Content and Classifying Different Types of Vinegar Based on Near Infrared Spectroscopy and Ant Colony Optimization Partial Least-Squares Analysis”. Journal of Applied Solution Chemistry and Modeling 2 (1):25-32. https://doi.org/10.6000/1929-5030.2013.02.01.4.