@misc{indiciaef5561040e205,
  title = {A note on equivalent circles, squares, and rectangles.},
  author = {B E Bjärngard and R L Siddon},
  doi = {10.1118/1.595161},
  url = {https://pubmed.ncbi.nlm.nih.gov/7087913/},
  note = {Source identifier: 7087913}
}