KOVESDI, C.; BARTON, B. K.; RICE, L.. Visual Efficiency Detection Index: A New Composite Measure of Visual Search. Journal of Eye tracking, Visual Cognition and Emotion, [S.l.], mar. 2012. Available at: <http://revistas.ulusofona.pt/index.php/JETVCE/article/view/2717>. Date accessed: 23 mar. 2019.