Human-Computer Interaction 4th Iberoamerican Workshop, HCI-Collab 2018, Popayán, Colombia, April 23-27, 2018, Revised Selected Papers - Agredo-Delgado, Vanessa; Agredo-Delgado, Vanessa; Ruiz, Pablo H.; Ruiz, Pablo H. (Springer International Publishing : Imprint: Springer, 2019)