- Concluding Remarks, G. Evelyn Hutchinson, 1957: https://sci-hub.box/10.1101/SQB.1957.022.01.039 (niches, formalism)
- Pirolli & Card (2005), "The Sensemaking Process and Leverage Points for Analyst Technology" pdf
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Shirky, "Ontology is Overrated: Categories, Links, and Tags" http://shirky.com/essays/ontology-is-overrated-categories-links-and-tags/