@misc{indiciae7b05e91def88,
  title = {Paths to optimization in the multistate Rayleigh-Ritz variational method: Applications to the double-well quantum anharmonic oscillator.},
  author = {RF Bishop and MF Flynn and MC Boscá and R Guardiola},
  year = {1989},
  doi = {10.1103/physreva.40.6154},
  url = {https://pubmed.ncbi.nlm.nih.gov/9902002/},
  note = {Source identifier: 9902002}
}