A Roadmap on Updates. - Fernando Zacarías Flores; Dionicio Zacarías Flores; Rosalba Cuapa Canto; Luis Guzmán Muñoz (Database Technologies: Concepts, Methodologies, Tools, and Applications, 2009)

A Roadmap on Updates. - Fernando Zacarías Flores; Dionicio Zacarías Flores; Rosalba Cuapa Canto; Luis Guzmán Muñoz (Encyclopedia of Artificial Intelligence, 2009)

Signed Formulae as a New Update Process. - Fernando Zacarías Flores; Dionicio Zacarías Flores; Rosalba Cuapa Canto; Luis Guzmán Muñoz (Encyclopedia of Artificial Intelligence, 2009)