@article{800191, author = {Shigeo Tanuma and Cedric Powell and David Penn}, title = {Calculations of Electron Inelastic Mean Free Paths (IMFPs) IV. Evaluation of Calculated IMFPs and of the Predictive IMFP Formula Tpp-2 for Electron Energies between 50 and 2000 eV}, year = {1993}, number = {20}, month = {1993-01-01 00:01:00}, publisher = {Surface and Interface Analysis}, language = {en}, }