If you are logged in, but an online resource is not working, check the tab Weitere Services pertinent to that resource in order to see what its current accessibility status is.

The terms and conditions for the use of individual online resources are different because of different licenses. You will find more information about terms and conditions for the use of online resources on the University Library website:

http://www.fu-berlin.de/en/sites/ub/literatursuche/primo/index.html