DILE: A system to design electronic books. - Manuel Pérez Cota; Ana Isabel Diez Sanchez; Hector Jorge Garcia Neder; Luis Vilan Crespo; Paulo Costa (WebNet, 2001)

The Impact of the Information Technologies and Communication in the Educational System - Case Study of North of Portugal and South of Galicia. - Manuel Pérez Cota; Luis Vilan Crespo; Jose Paulo Machado Da Costa; Ana Isabel Diez Sanchez (ICEIS (4), 2004)