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Open Access discovery tools aim to locate freely available copies of research papers which might be behind the paywall on a publisher's website. Our study, which was funded by Jisc, provides the first large scale quantitative performance comparison of four OA Discovery tools: Unpaywall, OA Button, CORE OA Discovery and Kopernio on a randomly selected sample of 100k DOIs from CrossRef.
Open access discovery
Open access discovery
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
| views | 2 | |
| downloads | 1 |

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