PACHECO LEÓN, Freddy. Forest Research and Services Institute (INISEFOR). Tropical Journal of Environmental Sciences, [S. l.], v. 9, n. 1, p. 138–140, 1993. DOI: 10.15359/rca.9-1.12. Disponível em: https://www.revistas.una.ac.cr/index.php/ambientales/article/view/13051.. Acesso em: 18 jul. 2024.