@misc{indiciae1e9acd449609,
  title = {The 49th parallel: how much latitude?},
  author = {P W Armstrong},
  year = {1995},
  doi = {10.1016/0735-1097(95)00402-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/7594021/},
  note = {Source identifier: 7594021}
}