TY  - RPRT
TI  - A clustering technique for summarizing multivariate data.
AU  - G H Ball
AU  - D J Hall
PY  - 1967
DO  - 10.1002/bs.3830120210
UR  - https://pubmed.ncbi.nlm.nih.gov/6030099/
ID  - 6030099
ER  -