@misc{indiciae9bd6b18627ac,
  title = {Fixed or fluid?},
  author = {E A Grove},
  year = {1993},
  doi = {10.1016/0960-9822(93)90361-q},
  url = {https://pubmed.ncbi.nlm.nih.gov/15335720/},
  note = {Source identifier: 15335720}
}