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The reverted editor did not know what the hypertext links in the References section were.  Because they look a lot like internal wiki-links to other articles, she reasonably supposed that that's what they were.  They are supposed to be in-page links to the full entry in the bibliography, but many of them did not work because the ref=harv parameter was not in the templates. This should fix all of that.
To clarify terms:  In the ""real"" world, ""Harvard referencing"" refers to using in-line parenthetical author-date referencing, e.g. ""The Gospel of Matthew is anonymous (Duling 2010: 298).""  Of course, here on Wikipedia we have to confuse every issue, so now ""harvard"" is also used to refer to a template-based mechanism such as on this article which automatically links shortened references to citation template entries, whether they are parenthetical or footnotes, and using a wide variety of citation styles.  (Discussion, Contributions) "