DETERMINING ELASTIC CROSS-SECTIONS IN POSITRON-HELIUM ION COLLISIONS. International journal of physical sciences, [S. l.], v. 4, n. 04, p. 1–7, 2024. Disponível em: https://www.academicpublishers.org/journals/index.php/ijps/article/view/1293.. Acesso em: 9 oct. 2025.