@electronic{www.kde.cs.uni-kassel.de,
   title       = {Info20:Hauptseite – Wiki}, 
   url         = {https://www.kde.cs.uni-kassel.de/mediawiki/index.php/Info20:Hauptseite},
   biburl      = {https://puma.uni-kassel.de/url/86a40140108dda7e94560c79723a1f89/stephandoerfel},
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@electronic{googlewebmastercentral.blogspot.com,
   title       = {Official Google Webmaster Central Blog: Introducing Rich Snippets}, 
   url         = {http://googlewebmastercentral.blogspot.com/2009/05/introducing-rich-snippets.html},
   biburl      = {https://puma.uni-kassel.de/url/acd1dc9ca963b0ac5ac295003936fefe/stephandoerfel},
   keywords    = {google info info2.0 info20 rate rating rdf review rich snippet star BibSonomy},
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