PARRA O., M.; CAREY B., P. Methodological considerations to productivity valuation of harvesters in forest operations. Bosque, [S. l.], v. 21, n. 2, p. 137–146, 2000. DOI: 10.4206/bosque.2000.v21n2-11. Disponível em: http://revistas.uach.cl/index.php/bosque/article/view/5473. Acesso em: 6 apr. 2026.