MONGE-NAJERA, J. “Please pay $800 to read this article”: An open letter to paywall companies. Revista de Biología Tropical, [S. l.], v. 66, n. 1, p. 1–5, 2018. DOI: 10.15517/rbt.v66i1.32238. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/32238. Acesso em: 19 dec. 2024.