TY  - RPRT
TI  - Multichannel quantum-defect theory and an equivalent N-level system.
AU  - WE Cooke
AU  - CL Cromer
PY  - 1985
DO  - 10.1103/physreva.32.2725
UR  - https://pubmed.ncbi.nlm.nih.gov/9896412/
ID  - 9896412
ER  -