The International Music Score Library Project (IMSLP) is NOT a DSU provided resource. It is free to anyone and can be found at imslp.org.
Permalinks can be found near the settings menu of each item (upper right corner) so you can save the link for future reference or add it to your citations.
!!!Be cautious of ads!!! When downloading scores, IMSLP displays large ads with misleading phrases (such as 'Download Now!'). Read all text carefully to make sure you're not clicking on an ad.
IMSLP is a free resource for scores for academic use. Please be aware of copyright protections – downloading a single copy for research, practice, or a private lesson is acceptable, but using multiple copies for a public performance or recording session can be copyright infringement!