Zhihui, Zhu, Liu Ting, Xie Dejun, Wang Qiaohua, and Ma Meihu. 2015. “Nondestructive Detection of Infertile Hatching Eggs Based on Spectral and Imaging Information”. International Journal of Agricultural and Biological Engineering 8 (4). Beijing, China:69-76. https://ijabe.org/index.php/ijabe/article/view/1672.