@misc{indiciae96af99c4a679,
  title = {Formally exact quantization condition for nonrelativistic quantum systems.},
  author = {Y C Ou and Zhuangqi Cao and Qishun Shen},
  year = {2004},
  doi = {10.1063/1.1799015},
  url = {https://pubmed.ncbi.nlm.nih.gov/15511134/},
  note = {Source identifier: 15511134}
}