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Responsible for this site is Dr. Bengt Martensson, webmaster@harctoolbox.org. With the exception of my other two sites (www.bengt-martensson.de and www.bengt-martensson-consulting.de), I am not responsible for the content of linked sites, over which I have no control. At the time of the original publishing, no illegal or otherwise questionable content on linked sites was known to me.