Sources
Penn State Extension
University Extension
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The public outreach site of Pennsylvania State University Extension, extension.psu.edu, cited here for its account of the history of anaerobic digestion and biogas.
Facts
PublisherPennsylvania State University
Source TypeUniversity Extension
URLhttps://extension.psu.edu
Sources
Claims Backed By This Source (7 claims)
This source backs 7 claims across the atlas. As facts: 5 well-attested. As cited relationships: 1 connected. Plus 1 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Sources, 4 claims: 4 well-attested.
- Energy Sources, 3 claims: 1 well-attested, 1 connected, 1 general references.
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