Simon K. S. Cheung, Richard Li, Kongkiti Phusavat, Naraphorn Paoprasert, Lam For Kwok: Blended Learning. Education in a Smart Learning Environment - 13th International Conference, ICBL 2020, Bangkok, Thailand, August 24-27, 2020, Proceedings. Lecture Notes in Computer Science 12218, Springer 2020, ISBN 978-3-030-51967-4