Constructing a Hierarchy of Generalization/Specialization from the O.A.S Hierarchy of Formal Classes. - María C. Fernández-Baizán; Concepción Pérez; Rafael Portaencasa; Eugenio Santos (DAISD, 1993)

Analysis and Design of a Relational Database Management System and Implementation of its Nucleus. - María C. Fernández-Baizán; A. García; Michael M. González; C. Pérez-Llera; Rafael Portaencasa; Eugenio Santos (Comput. Artif. Intell., 1996)

Multivalued Dependencies as Inference Rules on a Deductive Process under a Relational Data Model Set-theory Approach. - Socorro Millán; María C. Fernández-Baizán; Ernestina Menasalvas Ruiz; Rafael Portaencasa (Comput. Artif. Intell., 2000)