Origin of color variations of thin, nano-sized layers of volcanic cinder from the Sierra Negra Volcano of the Galapagos Islands. Uniciencia, [S. l.], v. 35, n. 2, p. 1–13, 2021. DOI: 10.15359/ru.35-2.14. Disponível em: https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/14791.. Acesso em: 29 apr. 2024.