Chen, Weiqin, Norun Christine Sanderson, Siri Kessel, and Aleksandra Królak. “Heuristic Evaluations of the Accessibility of Learning Management Systems (LMSs) As Authoring Tools for Teachers”. First Monday 20, no. 9 (September 10, 2015). Accessed August 18, 2022. https://firstmonday.org/ojs/index.php/fm/article/view/5430.