García López, J. M., and C. Allué Camacho. 2006. “Characterization and Phytoclimatic Potentialities of Quercus Petraea (Matt.) Liebl. and Quercus Robur L. Forests in Spain”. Forest Systems 15 (3), 277-95. https://doi.org/10.5424/srf/2006153-00971.