The holdings of the University Library also include complete collections and libraries acquired on special request of individual faculties.
Titles from these special collections are marked with "From the library of ..." and can therefore also be searched for in our OPAC, e.g. writings by Immanuel Kant from the Ebbinghaus Library:
Author/Ed. ="Kant, Immanuel" and Basic search="Bibliothek Ebbinghaus".