TY  - RPRT
TI  - Two-photon transitions in atomic inner shells: Relativistic and atomic-screening effects.
AU  - XM Tong
AU  - JM Li
AU  - L Kissel
AU  - RH Pratt
PY  - 1990
DO  - 10.1103/physreva.42.1442
UR  - https://pubmed.ncbi.nlm.nih.gov/9904176/
ID  - 9904176
ER  -