@misc{indiciae3764f25db3cb,
  title = {Canonical quantization of constrained systems.},
  author = {A Bouzas and LN Epele and H Fanchiotti and CA Canal},
  year = {1990},
  doi = {10.1103/physreva.42.90},
  url = {https://pubmed.ncbi.nlm.nih.gov/9903780/},
  note = {Source identifier: 9903780}
}