Diez, M. R., and J. I. Fernandez-Golfin. “Influence of Different Factors in the Quality of Structural Timber of P. Sylvestris L.”. Forest Systems 7, no. 1 (December 1, 1998): 41-51. Accessed August 3, 2026. https://fs.revistas.csic.es/index.php/fs/article/view/589.