1. Arbulu, M. 2009. Stable locomotion of humanoid robots based on mass concentrated model. PhD thesis, University Carlos III of Madrid.
2. Bueno, J. G., M. G. Fierro, L. Moreno, and C. Balaguer. 2012. Facial gesture recognition using active appearance models based on neural evolution. Paper presented at the 2012 International Conference on Human–Robot Interaction (HRI 2012), Boston, MA, March 5–8.
3. New results on the synthesis of FO-PID controllers
4. An effective co-evolutionary differential evolution for constrained optimization