If you use Mekentosj software's Papers application on the iPhone, iPad, or iPod Touch, you'll need to configure the application so that it recognizes you as being affiliated with the University of Michigan.
Proxy Server
http://proxy.lib.umich.edu/login?url=%@
Use EzProxy
On
Authentication or Login Page
http://weblogin.umich.edu/
A screen shot of the settings:
