- http://web.resource.org/rss/1.0
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The RSS 1.0 Specification
- http://backend.userland.com/rss
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The RSS 2.0 Specification
- http://backend.userland.com/rss09
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The RSS 0.92 Specification
- http://backend.userland.com/rss091
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The RSS 0.91 Specification
- http://purl.org/rss/1.0/modules
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The RSS 1.0 modules known to the working group