*On the content of the links to external web pages listed above, we do not have control. Therefore we can not accept any responsibility for their content. The respective provider or operator of these pages is always responsible for the contents of any linked site. The linked sites were checked at the time of linking for possible violations of law. Illegal contents have not been recognized at the time of linking. A permanent control of the linked pages is unreasonable without concrete evidence of a violation. Upon notification of violations, we will remove such links immediately .