Login at the administration page of the blog: http://blog.stud.uni-goettingen.de/deinblogname/wp-admin

Click on the menu item called “Seiten” (“pages”).

In the overview you can see the page called “Beispiel-Seite” (“sample page”) which you can edit, rename or delete.

By clicking the button “Erstellen” (“create”) you can create a new page.