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Privacy policy

Like most website operators, collects non-personally-identifying information of the sort that web browsers and servers typically make available, such as the browser type, language preference, referring site, and the date and time of each visitor request.’s purpose in collecting non-personally identifying information is to better understand how our visitors use our website. also collects potentially personally-identifying information like Internet Protocol (IP) addresses. does not use such information to identify its visitors, however, and does not disclose such information, other than under the same circumstances that it uses and discloses personally-identifying information, as described below.

Gathering of Personally-Identifying Information

Certain visitors to’s websites choose to interact with in ways that require to gather personally-identifying information. The amount and type of information that gathers depends on the nature of the interaction. For example, we ask visitors who use our newsletters to provide a username and email address. In each case, collects such information only as is necessary or appropriate to fulfill the purpose of the visitor’s interaction with does not disclose personally-identifying information other than as described below. And visitors can always refuse to supply personally-identifying information, with the caveat that it may prevent them from engaging in certain website-related activities.

Protection of Certain Personally-Identifying Information will not rent or sell potentially personally-identifying and personally-identifying information to anyone. takes all measures reasonably necessary to protect against the unauthorized access, use, alteration, or destruction of potentially personally-identifying and personally-identifying information. Aggregated Statistics may collect statistics about the behavior of visitors to its websites. For instance, may reveal how many downloads a particular paper got, or say which downloads are most popular.


Our website uses Piwik, a web analytics open-source software. Piwik uses “cookies”, which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website (including your IP address anonymized prior to its storage) will be stored on the server of the service provider in Germany. You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website.