Vu Thi Them, Nguyen Quang Hoan, and Nguyen Thi Hong. “FACE PATTERN RECOGNITION USING MULTI-TASK CASCADED CONVOLUTIONAL NEURAL NETWORKS”. UTEHY Journal of Applied Science and Technology, Vol. 24, May 2020, pp. 72-76, http://jst.utehy.edu.vn/index.php/jst/article/view/327.