Ardimento, Pasquale, Nicola Boffoli, Vito Nicola Convertini, and Michele Scalera. “Integrating Fitts’ Law in Heuristical Evalution Checklist”. Journal of e-Learning and Knowledge Society 12, no. 4 (September 27, 2016). Accessed November 18, 2019. https://www.je-lks.org/ojs/index.php/Je-LKS_EN/article/view/1133.