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Contents
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(Top)
1
Overview
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1.1
Definition of a source
1.2
Definition of
published
1.3
Context matters
1.4
Age matters
1.5
Usage by other sources
2
Some types of sources
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2.1
Scholarship
2.2
News organizations
2.2.1
Editorial and opinion commentary
2.2.2
News aggregators
2.3
Vendor and e-commerce sources
2.4
Biased or opinionated sources
3
Questionable and self-published sources
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3.1
Questionable sources
3.1.1
Sponsored content
3.2
Self-published sources (online and paper)
3.2.1
User-generated content
3.3
Self-published and questionable sources as sources on themselves
3.4
Sources produced by machine learning
4
Reliability in specific contexts
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4.1
Biographies of living persons
4.2
Primary, secondary, and tertiary sources
4.3
Medical claims
4.4
Fringe theories
4.5
Quotations
4.6
Academic consensus
4.7
Statements of opinion
4.8
Breaking news
4.9
Headlines
5
Deprecated sources
6
See also
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6.1
Templates
6.2
Policies and guidelines
6.3
Information pages
6.4
Locating reliable sources
6.5
Essays
6.6
Other
7
Notes
8
References
9
External links
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Wikipedia
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Reliable sources
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