[1]
J. Ruiz del Castillo y Navascues, C. López Leiva, J. I. García Viñas, J. M. Villares Muyo, P. Tostado Rivera, and C. García Rodríguez, “The Forest Map of Spain 1:200,000. Methodology and analysis of general results”, For. syst., vol. 15, no. S1, pp. S24-S39, Dec. 2006.