Intermediate coupling collision strengths for delta N = 0 transitions produced by electron impact on highly charged ions. I - Theoretical development and application to N = 2 levels in helium-like ions
- 1 October 1980
- journal article
- Published by American Astronomical Society in The Astrophysical Journal Supplement Series
- Vol. 44, 169-191
- https://doi.org/10.1086/190689