To optimize our website we collect and store data; i.e, the date and time of the page call, the page from which you access our site etc., unless you object to this data collection and storage. This is done anonymously without personally identifying the user of the page. If necessary user profiles are created using a pseudonym. Again, there is no connection between the person behind the pseudonym and the collected usage data. We also use cookies for data collection and storage. These also collect data only in an anonymous or pseudo-standardized form. Addresses which you enter through the contact form will be stored in an address book for the homepage and will not be passed on to third parties. They serve only to maintain our service.