Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Yang Wang, Qingtang Liu, Wenli Chen, Qiyun Wang, David Stein. Effects of instructor's facial expressions on students' learning with video lectures. BJET, 50(3):1381-1395, 2019. [doi]
Abstract is missing.