The mutual information. Estimation in the sampling without replacement. - María Angeles Gil; Rigoberto Pérez; Pedro Gil (Kybernetika, 1987)

An Experience on Virtual Teaching: AulaNet. - Ana Jesús López; Rigoberto Pérez (Computers and Education. Towards an Interconnected Society, 2001)

A note on smooth approximation capabilities of fuzzy systems. - Manuel Landajo; María J. Río; Rigoberto Pérez (IEEE Trans. Fuzzy Syst., 2001)