Torrubiano, Claudio, and Hernán Salinas. 1998. “Predicting Stem Volume Tools for Douglas Fir (Pseudotsuga Menziesii (Mirb ) Franco) Located in the Zone of Valdivia”. Bosque 19 (2):11-21. https://doi.org/10.4206/bosque.1998.v19n2-02.