Imprint, Disclaimer, Sources


This website is managed by:

Prof. Dr. Thomas Niemand
TU Clausthal
Institute of Management and Economics
Julius-Albert-Straße 6
38678 Clausthal-Zellerfeld

Telephone: +49 (5323) 72 -7688

The goals and contents of this website are not commercial. The authors do not earn money by ads or any other means. 


The information contained in this website is for general information purposes only. The information is provided by the authors and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website.

Through this website you are able to link to other websites which are not under the control of the authors. We have no control over the nature, content and availability of those sites. The inclusion of any links does not necessarily imply a recommendation or endorse the views expressed within them.

Every effort is made to keep the website up and running smoothly. However, the authors takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues beyond our control.


Personal pictures: Contributed and authorized by the authors (Thomas Niemand, Robert Mai)

R Logo: Hadley Wickham and others at RStudio, CC BY-SA 4.0, via Wikimedia Commons