@misc{indiciae61eb70a77eca,
  title = {Polymorphisms for extra heterochromatin in Phaulacridium marginale.},
  author = {M Westerman and P G Fontana},
  year = {1973},
  doi = {10.1038/hdy.1973.77},
  url = {https://pubmed.ncbi.nlm.nih.gov/4521376/},
  note = {Source identifier: 4521376}
}