Gorgoso-Varela, J. J.; Rojo-Alboreca, A.; Afif-Khouri, E.; Barrio-Anta, M. Modelling Diameter Distributions of Birch (Betula Alba L.) and Pedunculate Oak (Quercus Robur L.) Stands in Northwest Spain With the Beta Distribution. For. syst. 2008, 17, 271-281.