@misc{indiciaefce68f155ef4,
  title = {Modified variational calculations in quantum theory.},
  author = {WL Kennedy},
  year = {1988},
  doi = {10.1103/physreva.38.2657},
  url = {https://pubmed.ncbi.nlm.nih.gov/9900675/},
  note = {Source identifier: 9900675}
}