M.I.S.T.E.L.A. A Seamless Image of Telefonica De Espana S.A. - German Gonzalez; Silvio Martínez (ESM, 1996)

SAT: A Software for Assessing the Risk of Desertification in Spain. - Jaime Martínez Valderrama; Javier Ibáñez; Francisco J. Alcalá; Silvio Martínez (Sci. Program., 2020)