“Total Cross Sections for Electron Scattering from $CF_4$, $C_2F_4$, $C_2F_6$, $C_3F_8$ in the Energy Range from 100 eV to 5000 eV” (2015) Journal of Atomic and Molecular Sciences, 6(2), pp. 113–118. doi:10.4208/jams.041115.050915a.