Insofar as any personal data (e.g. name, address or e-mail address) is collected, such data is at all times collected on a voluntary basis, insofar as possible. The use of our products and services is at all times possible without submitting any personal data, insofar as possible. Third party use of contact data, which is published due the imprint requirement, for the purpose of unsolicited advertising and information material is expressly objected to. The operators of this web page expressly reserve the right to initiate legal action in case of delivery and/or transmission of any unsolicited advertising information, such as Spam mails.