T. Xuan, L. Khanh, H. Trung, H. Thu, and T. Thanh. ICCASA, volume 165 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 322-332. Springer, (2015)
N. Hien, H. Tuan, D. Ha, L. Trang, T. Anh, and D. Son. ICTCC, volume 408 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 1-19. Springer, (2021)