It also applies for materials provided electronically to distance learning students. Whether you can do so depends on whether you own copyright to the materials, and, if not, whether you are going to assume the risks that come with publishing them without permission. Problems occur when high resolution images are presented which can be reproduced as copies of the original work. If this occurs then all of the considerations related to copyright ownership come into play. The same is true if Yale owns the copyright.
Most universities seem to be saying for the duration of the course only.
In other words, one term. Then they are moved to another part of the server and not used until the course is taught again. There are no clear standards for providing bibliographic information. Include whatever information is useful. The DMCA in Section 108 states that libraries or archives may make up to three preservation copies of a work either as either paper facsimiles, microfilm, or digital.