TRELLIS is the online library catalogue which is searched by Primo.
This library catalogue is shared by Laurier, Waterloo, and Guelph.
The TRELLIS catalogue contains all physical resources, such a books, paper journals, videos, and paper maps, available at any TUG institution. TRELLIS also contains journal titles (physical and electornic), as well as some electronic resources.
NOTE: Journal articles are not available via TRELLIS.
Primo searches not only TRELLIS, but also searches a huge collection of electronic journal articles.