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Responsible for this offer according to § 5 TMG, § 55 RStV:

pro et con 
Innovative Informatikanwendungen GmbH

Reichenhainer Straße 29a
c/o Pegasus Center
09126 Chemnitz

    +49 371 270951-0
+49 371 270951-29
Register of companies: Chemnitz District Court - HRB 9913
VAT number: DE163285954

Dr. Uwe Kaiser
Dr. Wolfgang Bormann

Responsible for the content: Dr. Uwe Kaiser


pro et con is not willing or obliged to participate in dispute resolution proceedings before a consumer arbitration board.



The data and information included in the websites of pro et con are investigated and checked with due diligence. pro et con doesn't assume any liability for currency, correctness and completeness of the presented information.

The liability for material or non-material faults, which are caused by the using or non-using of the presented information resp. the using of incorrect and incomplete information, is excluded fundamentally, provided there exists no verifiable intentional or gross negligent debt on the part of the author.

The company pro et con reserves the right to modificate or complete the presented information at any time or to discontinue the publication occasionally or finally.

References and links

The offer of pro et con contains hyperlinks to external third-party websites, which are outside of pro et con's reach. The respective provider or carrier is in charge of the content of these sites. pro et con assumes no liability for contents of third-party websites and offers no guarantee for their currency, correctness and completeness. At the time of linking no unlawful contents were visible. Herewith pro et con in particular dissociates from all contents of the linked websites, which were modified after the linking. pro et con will delete the link to the respective information immediately at cognition of infringement.


The company pro et con strives to respect the copyrights of the used graphics and texts within all publications resp. to use self-made and license free graphics and texts. pro et con will immediately remove the respective contents upon discovery of infringements.

All mentioned and if necessary third-party copyrighted labels and trademarks within the internet presentation of pro et con are subject absolutely to the restrictions of the respective valid trademark right and to the ownership rights of the respective incorporated owner. Their reproduction is not carried out under copyright or trademark law. Only due to the merely mention it can't be concluded that trademarks are not saved by third-party rights!

The self-made contents, objects and the layout of the website published by pro et con are subject to the German copyright. The duplication, modification and distribution of information or data, especially the using of texts or graphic material requires the explicit preceding agreement of pro et con.

Legal efficiency

This disclaimer has to be respected as a part of pro et con's internet offer. In the case some part or single formulations within the text do not fit, do no longer fit or do not completely fit the valid legal position, the content and the validity of the remaining parts of the document will remain unaffected.