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At my institution, users affiliated with West Campus use Sirsi SingleSearch, and users affiliated with East Campus use Ex Libris MetaLib.
To handle our the example scenario, we'll need two sets of XML configuration files, one set for SingleSearch and another for MetaLib, as well as a site-specific implementation of the SiteOsidConfiguration API interface. The custom SiteOsidConfiguration implementation selects the appropriate configuration files at runtime, when the Citations Helper is invoked.
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