Machado, Sebastião do Amaral, et al. “Behavior of the Hypsometric Relationship of Araucaria Angustifolia in the Forest Copse of the Faculty of Forest - Federal University of Paraná, Brazil”. Pesquisa Florestal Brasileira, no. 56, Mar. 2010, p. 5, https://pfb.sede.embrapa.br/pfb/article/view/58.