@misc{indiciae7351c3dc7b87,
  title = {Gordon David Ley.},
  author = {J Nattrass},
  year = {1970},
  doi = {10.5694/j.1326-5377.1970.tb63179.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4925504/},
  note = {Source identifier: 4925504}
}