@misc{indiciaeb99a9009718c,
  title = {Canonical quantization in n},
  author = {PV Landshoff and van Nieuwenhuizen P},
  year = {1994},
  doi = {10.1103/physrevd.50.4157},
  url = {https://pubmed.ncbi.nlm.nih.gov/10018054/},
  note = {Source identifier: 10018054}
}