TY  - RPRT
TI  - Factorizations of two vector operators for the Coulomb problem.
AU  - de Lange OL
AU  - RE Raab
PY  - 1987
DO  - 10.1103/physreva.35.951
UR  - https://pubmed.ncbi.nlm.nih.gov/9898232/
ID  - 9898232
ER  -