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Our data are stored in an Access 2007 database, which is then transferred into a MySQL 5 database on the server. Our web pages are generated by PHP 5 on Apache HTTP Server 2.2. They are written in HTML 4.01 Strict and MathJax 1.1, styled in CSS 2.1, and tested on Opera 11.50, Chrome 13.0, Safari 5.1, Internet Explorer 9.0, and Firefox 6.0. News and changes are recorded in a low-traffic RSS 2.0 feed.
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Geographic origin of visitors, as monitored by Google Analytics and displayed by EmbeddedAnalytics.