This page contains links to external websites of third parties, on whose contents I have no influence. Therefore I can not take any responsibility for these external contents. The respective provider or operator of the pages is always responsible for the content of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal contents were not recognizable at the time of linking. However, a permanent control of the contents of the linked pages is not reasonable without concrete evidence of a violation of the law. If I become aware of any violations of the law, I will remove such links immediately.