@misc{indiciaeb9b1c0b17afc,
  title = {Guiding planes: when and where.},
  author = {J E Holt},
  year = {1981},
  doi = {10.1016/0022-3913(81)90126-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7024516/},
  note = {Source identifier: 7024516}
}