@misc{indiciae97a97cc5c264,
  title = {Two poles and a compass.},
  author = {Ruedi Meili and Richard A Firtel},
  year = {2003},
  doi = {10.1016/s0092-8674(03)00553-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/12887916/},
  note = {Source identifier: 12887916}
}