FATMA N. GAAFER. Reduce spherical aberration of doublet of combined quadrupole lenses (rectangular model). Journal of Wasit for Science and Medicine, [S. l.], v. 5, n. 1, p. 91–97, 2022. DOI: 10.31185/jwsm.173. Disponível em: https://jwsm.uowasit.edu.iq/index.php/jwsm/article/view/173. Acesso em: 15 may. 2026.