Tanuma, S.
, Powell, C.
and Penn, D.
(1987),
Proposed Formula for Electron Inelastic Mean Free Paths Based on Calculations for 31 Materials, Surface Science, [online], https://doi.org/10.1016/s0039-6028(87)81156-1, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620306 (Accessed April 30, 2026)