Hierarchical grouping to optimize an objective function

{
  "doi": null,
  "year": 1963,
  "title": "Hierarchical grouping to optimize an objective function",
  "venue": "Journal of the American Statistical Association",
  "authors": [
    "Ward Jr, J. H."
  ],
  "arxiv_id": null,
  "s2_paper_id": null,
  "ingest_status": "referenced-only"
}