Velásquez Ibarra, ​​​​​​​​​Andrés (2018) “Helium reaps awards for innovating with solar energy”, Revista Universidad EAFIT, 52(169), pp. 86–89. Available at: https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/5680 (Accessed: 11 November 2026).