McClelland, J.
, Lorentz, S.
, Scholten, R.
, Kelley, M.
and Celotta, R.
(1992),
Determination of Complex Scattering Amplitudes in Low-Energy Elastic Electron-Sodium Scattering, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620404 (Accessed April 24, 2026)