A Hybrid Machine-Learning Ensemble for Anomaly Detection in Real-Time Industry 4.0 Systems. - David Velásquez 001; Enrique Pérez; Xabier Oregui; Arkaitz Artetxe; Jorge Manteca; Jordi Escayola Mansilla; Mauricio Toro; Mikel Maiza; Basilio Sierra (IEEE Access, 2022)