Rubén Vera-Rodríguez, Julian Fiérrez, Aythami Morales: Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications - 23rd Iberoamerican Congress, CIARP 2018, Madrid, Spain, November 19-22, 2018, Proceedings. Lecture Notes in Computer Science 11401, Springer 2019, ISBN 978-3-030-13468-6