Peña, M. A., and S. H. Altmann. “Recognition of the Effect of Cinara Cupressi (Hemiptera: Aphididae) in the Sanitary Condition of Austrocedrus Chilensis by Multispectral Images”. Revista Bosque, vol. 30, no. 3, Dec. 2009, pp. 151-8, https://revistabosque.org/index.php/bosque/article/view/837.