Page History

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Cross-referencing pages where appropriate AND . Use one single information piece/location instead of having redundand contenton multiple pages (is there some sort of content-pieces-reuse supported by confluence like Typo3, WikiMedia etc. allow?? include works only for whole pages, excerpt allows only one piece per page). Redundand content is bad, as often only one version is updated, but all other occurences of the same information stay outdated/incorrect.

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