When you provide article URLs to your students, they have to be both PERSISTENT and PROXIED. A persistent link will ensure they get to the correct article. A proxied link will enable access for off-campus users as well as users on campus.
To ensure that your links work for off-campus users, make sure that the URL begins with http://ezproxy.bgsu.edu/login?url=
For example: http://ezproxy.bgsu.edu/login?url=http://www.jstor.org/stable/3556958
Proxied persistent URL from JSTOR: http://ezproxy.bgsu.edu/login?url=http://www.jstor.org/stable/3556958