@misc{indiciae1285e9b3b20c,
  title = {New vector operators for the nonrelativistic Coulomb problem.},
  author = {de Lange OL and RE Raab},
  year = {1986},
  doi = {10.1103/physreva.34.1650},
  url = {https://pubmed.ncbi.nlm.nih.gov/9897443/},
  note = {Source identifier: 9897443}
}