For general inquiries, please write to contact [At] Your email will be forwarded to Prof. Beel, the group’s secretary Lada Lübke, and other core members of ISG. Please write to contact [At] particularly if your matter relates to teaching, supervision of a Bachelor or Master’s thesis, a technical problem, or administration (e.g. a letter of recommendation; admission to a lecture; …).

If you want to contact some particular member, please see ‘People‘.

Visitor Address

Universität Siegen
Hölderlinstraße 3
Building H-C
Offices 8315 – 8318 and 8321-8323
57076 Siegen

GPS Coordinates

50.906873, 8.027975

Google Maps

Satellite with Illustration

Floor Plan

Mail / Postal Address

Universität Siegen
Fak. IV, ETI, ISG / Beel
<name of the recipient if applicable>
Hölderlinstr. 3, Geb. H-F
57076 Siegen

1 Comment

Graham Tunnadine · 8th April 2021 at 15:53

Hi Joeran Beel
I trust you are well. I am still using the fantastic Docear. Thank you for all the work you did with it.

I have a strange problem. PDF-Xchange Viewer is the default viewer on the computer. And it works normally on my login with Docear. On my wife’s login the highlighted text feature does not work even though PDF-XchangeViewer is the default app for PDFs. In the preferences in Docear it says to choose a pdf viewer and to Install PDF-Xchange. PDF-Xchange is not there as an option.
When she uses Docear, it links to PDF-Xchange, but the Highlighted text feature does not work. Only the Speech bubbles and bookmarks.

Is there something I can do to fix this?

Thanks again,

Graham Tunnadine

Leave a Reply

Your email address will not be published. Required fields are marked *