In your search for scholarly literature you may sometimes find the UBU-link. This link provides information about the availability of the publication via the University Library, in digital as well as in paper format.
UBU-link, quickly to the publication
In the case of digital publications the UBU-link provides direct access. For print publications the UBU-link gives information about availability at Utrecht University Library. Sometimes the UBU-link is in the form of a red button, but it can also be a text link.