Shinotsuka, Hiroshi, Penn, David R., TANUMA, Shigeo, Powell, Cedric J..
"Calculations of electron inelastic mean free paths. X. Data for 41 elemental solids over the 50 eV to 200 keV range with the relativistic full Penn algorithm".
Surface and Interface Analysis. 47, no. 9. .
(2015):
https://doi.org/10.1002/sia.5789