This site should automatically convert to a mobile-friendly version. Some of the resources will automatically recognize if you are on a mobile but many you will have to download an app from the webpage.
Many require you to log into Athens off-site authentication which can be found on the resources' pages or below.
Note: If you are prompted to log in to use a resource after you have logged in via Athens, look for a "Athens Login" link. After you click it, you will be taken to the resource.