Manuel Graña, José Manuel López-Guede, Oier Etxaniz, Álvaro Herrero, José Antonio Sáez, Héctor Quintián, Emilio Corchado: International Joint Conference SOCO'18-CISIS'18-ICEUTE'18 - San Sebastián, Spain, June 6-8, 2018, Proceedings. Advances in Intelligent Systems and Computing 771, Springer 2019, ISBN 978-3-319-94119-6