MOLINA, Luz Violeta. Historical review of Dr. Jaime Downing: founder of chemical engineering in Nicaragua. Nexo Revista Científica, [S. l.], v. 34, n. 03, p. 03–05, 2021. DOI: 10.5377/nexo.v34i03.11844. Disponível em: https://camjol.info/index.php/NEXO/article/view/11844. Acesso em: 6 dec. 2025.