Hubo, Xu, Wu Jie, Wang Zhaopeng, Gao Yongmao, Wang Zhipeng, and Zhao Zhengqiang. 2017. “Discrimination of Brownheart of Korla Pear Using Vibration Frequency Spectrum Technique”. International Journal of Agricultural and Biological Engineering 10 (2):259-66. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/1910.