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”. Bosque, vol. 30, no. 3, Dec. 2009, pp. 151-8, doi:10.4067/s0717-92002009000300005.