Erazo O, Pico R. User Interfaces based on Touchless Hand Gestures for the Classroom: A survey. Enfoque UTE [Internet]. 2014 Dec. 19 [cited 2024 Nov. 7];5(4):pp. 34 - 53. Available from: http://ingenieria.ute.edu.ec/index.php/revista/article/view/46