For every terminoloy and every term you can insert references.

There are 3 options to enter a reference:

1) as simple text
just enter the title of the reference in the text field as shown below
2) linked to a module like DiversityReferences or a webservice
Click on the  button to open a window where you can search and select for a reference in e.g. the module DiversityReferences. You need access to DiversityReferences or a corresponding webservice to use this option.
3) a URI of a website
click on the button to open a browser where you can choose the reference from the web

The data are stored in the tables TermReference and TerminologyReference respectively.