SÁENZ R., J. A.; NASSAR C., M. Phytochemical screening of Costa Rican plants: Alkaloid analysis. IV. Revista de Biología Tropical, [S. l.], v. 18, n. 1-2, p. 129–138, 1970. DOI: 10.15517/rev.biol.trop.v18i1-2.28091. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/28091. Acesso em: 7 may. 2024.