YAMBOT, Miguel et al.
Negative Ion Beam Focusing in a Plasma Sputter-type Negative Ion Source.
Science Diliman: A Journal of Pure and Applied Sciences, [S.l.], v. 11, n. 2, sep. 2007.
ISSN 2012-0818.
Available at: <https://journals.upd.edu.ph/index.php/sciencediliman/article/view/243>. Date accessed: 02 sep. 2025.