Datasets reposited with GESIS are uniquely identified with a
numberic identifier called a "DOI". This identifier appears both in the URL
for a dataset's website, and on the website itself.
In addition to accepting the terms of use, you need to input a purpose for
downloading a data set. The options are as follows:
1. for scientific research (incl. PhD)
2. for reserach with commercial mandate
3. for teaching as lecturer
4. for my academic studies
5. for my final exam (e.g. bachelor or master)
6. for professional training and qualification