Emilio Corchado, Héctor Quintián, Hilde Pérez García, Esteban Jove-Pérez, José Luís Calvo-Rolle, Francisco Javier Martínez de Pisón, Pablo García Bringas, Francisco Martínez-Álvarez, Álvaro Herrero, Paolo Fosci, Ramos Sérgio Filipe: Hybrid Artificial Intelligent Systems - 21st International Conference, HAIS 2026, Marbella, Spain, June 18-19, 2026, Proceedings. Lecture Notes in Computer Science 16596, Springer 2027, ISBN 978-3-032-29291-9