Accessing the UI/Popup

[jdittrich]

Story: As a user I want to add a reference.

Currently possible problem: There are two possibilities to add references: The "add reference"-Link and the "Magnifying glass"-Icon. Both add a reference, but with different methods.

* Possible solution* We integrate the lookup in the add-reference Interface which you get after clicking the "add reference"-Link. We e.g. could provide a "citation helper" link/button there.

roughly like this: