@article{Huan_Nguyen_Pham_Huynh-Tuong_2020, title={Authentication in E-learning systems: Challenges and Solutions}, volume={3}, url={http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/516}, DOI={https://doi.org/10.32508/stdjet.v3iSI1.516}, number={SI1}, journal={VNUHCM Journal of Engineering and Technology}, author={Huan, Luu and Nguyen, Duy-Minh and Pham, Hoang-Anh and Huynh-Tuong, Nguyen}, year={2020}, month={Dec.}, pages={SI95-SI101}