F. Gaxiola, P. Melin, and M. Lopez. Soft Computing for Recognition Based on Biometrics, volume 312 of Studies in Computational Intelligence, Springer, (2010)
F. Gaxiola, P. Melin, and F. Valdez. IEEE Conf. on Intelligent Systems (1), volume 322 of Advances in Intelligent Systems and Computing, page 707-713. Springer, (2014)
F. Gaxiola, P. Melin, and F. Valdez. Recent Advances on Hybrid Approaches for Designing Intelligent Systems, volume 547 of Studies in Computational Intelligence, Springer, (2014)