Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Servius the Grammarian:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

A third class of manuscripts, written for the most part in Italy, includes the core text with interpolated scholia, which demonstrate the continued usefulness of the Virgilii Opera Expositio.[citation needed]