@misc{indiciae8a66e4290543,
  title = {Path-integral representation for the relativistic particle propagators and BFV quantization.},
  author = {ES Fradkin and DM Gitman},
  year = {1991},
  doi = {10.1103/physrevd.44.3230},
  url = {https://pubmed.ncbi.nlm.nih.gov/10013778/},
  note = {Source identifier: 10013778}
}