@misc{indiciaeb5078ad5e16c,
  title = {Classical equations for quantum systems.},
  author = {M Gell-Mann and JB Hartle},
  year = {1993},
  doi = {10.1103/physrevd.47.3345},
  url = {https://pubmed.ncbi.nlm.nih.gov/10015955/},
  note = {Source identifier: 10015955}
}