San Martín, C., V. Sandoval, M. Álvarez, O. Vidal, Y. Pérez, and J. L. Solís. “Comparison of Vegetation Stages Degradation With Livestock Management Using Ellenberg’s Bioindicators in Chilean Patagonia”. Revista Bosque, vol. 35, no. 2, May 2017, pp. 141-54, https://revistabosque.org/index.php/bosque/article/view/599.