@misc{indiciae7d0e447eb288,
  title = {A clustering technique for summarizing multivariate data.},
  author = {G H Ball and D J Hall},
  year = {1967},
  doi = {10.1002/bs.3830120210},
  url = {https://pubmed.ncbi.nlm.nih.gov/6030099/},
  note = {Source identifier: 6030099}
}