PATIÑO, L.; SANDOVAL, V. Two-stage sampling and sampling design in secondary units evaluated in plantations of a joint action forestry program. Bosque, [S. l.], v. 19, n. 2, p. 3–10, 1998. DOI: 10.4206/bosque.1998.v19n2-01. Disponível em: http://revistas.uach.cl/index.php/bosque/article/view/5252. Acesso em: 10 apr. 2026.