dotSource GmbH is responsible for the content of this internet presence.

The contents of these web pages are maintained and updated with great care. However, dotSource GmbH does not assume any liability for the accuracy, timeliness, or completeness of the information presented here.

All texts on our pagesserve general informational purposes only. We have links to other pages in the internet on our pages and have checked these for correctness. We, however, have no influence on the design or the content of linked pages.

Activities of third parties may change the content so that it no longer matches our intent or may be illegal. We appreciate any information about such links. No liability is assumed by dotSource GmbH arising from usage of the information presented here.


dotSource GmbH
Goethestraße 1
07743 Jena

Phone: +49 3641 797 9000
Fax: +49 3641 797 9099
E-Mail: moc.ecruoStod@ofni

Managing Directors:
Christian Otto Grötsch 
Christian Malik
Frank Ertel

Register Office

Amtsgericht Jena

Registration Number:
HRB 210634
VAT ID Number:
DE 24 62 433 09
Tax Number:
Responsibility for these pages according to §55 paragraph 2 RStV:

Christian Otto Grötsch and Christian Malik

Copyright notice:

The contents of this web site are protected by copyright. Limited private usage is allowed.

This website and its contents may not be copied, presented, transferred, broadcast, rented, or borrowed without the express written consent of the copyright owners. Any infringement will be subject to civil and criminal prosecution.

All rights reserved. For any copyright questions, contact:


Photo credits:

In the following you will find information on the creators of the pictures used on our homepage:

  • Page "Registration" © Miredi /
  • Page "Structure and Design" (banner) © ronstik /