TY  - RPRT
TI  - Collision integral for ionization by electron impact for nonisotropic electron distribution functions.
AU  - A Ganguli
AU  - S Kuhn
PY  - 1994
DO  - 10.1103/physreva.49.3610
UR  - https://pubmed.ncbi.nlm.nih.gov/9910660/
ID  - 9910660
ER  -