AL-ESSA, Izzat M. Fabrication of carbon nanopowder by arc discharge technique. Iraqi Journal of Physics, Baghdad, Iraq., v. 10, n. 19, p. 41–46, 2012. Disponível em: https://www.ijp.uobaghdad.edu.iq/index.php/physics/article/view/728. Acesso em: 13 aug. 2025.