@misc{indiciae85260b708bb6,
  title = {A topological exchange model for cell self-sorting.},
  author = {R J Matela and R J Fletterick},
  year = {1979},
  doi = {10.1016/0022-5193(79)90009-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/439912/},
  note = {Source identifier: 439912}
}