@misc{indiciae6fa707a72ef7,
  title = {Uncertainties in coupling constant unification.},
  author = {P Langacker and N Polonsky},
  year = {1993},
  doi = {10.1103/physrevd.47.4028},
  url = {https://pubmed.ncbi.nlm.nih.gov/10016029/},
  note = {Source identifier: 10016029}
}