As the name already suggests, this feature gives you a preview of references in the article text. That means, you can look up a reference without jumping down to the bottom of the page. If specified, the preview also shows the type of a reference: whether it’s a web, journal, book or news reference. This can help readers evaluate the trustworthiness of a citation more quickly.
Reference Previews originated from a wish from the German-speaking wiki community to have the preview functionality that already exists in many wikis integrated into MediaWiki.
We’re inviting everyone to give the feature a try: Please activate the beta feature and let us know what you think on the central feedback page! If you'd like to know more about this feature, please visit the project page.