TY  - RPRT
TI  - Distorted-wave approximation for e-He (1(1)S-2(1)P) excitation: Angular correlation and differential cross sections.
AU  - R Srivastava
AU  - AK Katiyar
AU  - DK Rai
PY  - 1989
DO  - 10.1103/physreva.40.2749
UR  - https://pubmed.ncbi.nlm.nih.gov/9902464/
ID  - 9902464
ER  -