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https://phibetaiota.net/1999/12/1999-allen-us-requirements-collection-and-current-awareness-the-human-dimension-the-role-of-open-sources-as-the-foundation-for-successful-all-source-collection-strategies/
1999 Allen (US) Requirements, Collection, and Current Awareness: The Human Dimension (The Role of Open Sources as the Foundation for Successful All-Source Collection Strategies)