Arriandiaga, A., Portillo, E., Sánchez, J.A., Cabanes, I., Pombo, I. Virtual Sensors for On-line Wheel Wear and Part Roughness Measurement in the Grinding Process, Sensors, vol. 14, No. 5, pp. 8756-8778, 2014. JCR Impact Factor: 2.245 (2014). Quartile: Q1. http://www.mdpi.com/1424-8220/14/5/8756

Portillo, E., Cabanes, I., Sánchez, J.A., Orive, D., Ortega, N., Marcos, M. A computer assistant for monitoring tool performance during the drilling process, International Journal of Computer Integrated Manufacturing, vol. 25, No. 9, pp. 829-838, 2012. JCR Impact Factor: 0.944 (2012). Quartile: Q2. http://dx.doi.org/10.1080/0951192X.2012.671540

Portillo, E., Cabanes, I., Sánchez, J.A., Orive, D., Ortega, N., Marcos, M. A case study of a flexible software tool in the drilling process, CESCIT 2012: 1st IFAC Conference on Embedded Systems, Computational Intelligence and Telematics in Control, Wúrzburg, Germany, 2012. http://dx.doi.org/10.3182/20120403-3-DE-3010.00025

Portillo, E., Iriondo, N., Zubizarreta, A., Cabanes, I., Orive, D., Marcos, M., Sánchez, J.A. Harizko elektrohigadura-prozesuaren eraginkortasunaren hobekuntza sistema birtualen bidez, Ekaia, No. 24, pp. 277-290, 2011.

López, V., Portillo, E., Cabanes, I., Orive, D., Sánchez, J.A., Marcos, M. Análisis del proceso de taladrado para el diseño de una estrategia de control en potencia, XXXI Jornadas de Automática, Jaen, España, 2010. ISBN: 978-84-693-0715-1.

Portillo, E., Zubizarreta, A., Cabanes, I., Marcos, M. Application of Artificial Neural Networks in Wire Electro-discharge Machining (WEDM), Artificial Neural Networks, Cap. 4, pp. 137-184, Nova Science Publishers, Inc, 2010.

Portillo, E., Marcos, M., Cabanes, I., Orive, D. Real-time Monitoring and Diagnosing in Wire-Electro Discharge Machining, International Journal of Advanced Manufacturing Technology, vol. 44, No. 3-4, pp. 273-282, 2009. JCR Impact Factor: 1.128 (2009). Quartile: Q2. http://dx.doi.org/10.1007/s00170-008-1820-y

Portillo, E., Cabanes, I., Marcos, M., Zubizarreta, A. Aplicación de redes neuronales en la detección de regímenes degradados en el Proceso WEDM, Revista Iberoamericana de Automática, RIAI, vol. 6, No. 1, pp. 39-50, 2009. JCR Impact Factor: 0.261 (2009). Quartile: Q4. https://doi.org/10.1016/S1697-7912(09)70075-5