@electronic{www.google.de,
   title       = {Google}, 
   url         = {http://www.google.de/},
   biburl      = {https://puma.uni-kassel.de/url/1b1188c0d058153ef8dad3084a055292/hotho},
   keywords    = {search suchmaschinen tools web},
   added-at    = {2008-12-10T09:46:28.000+0100},
   description = {Web    Images    Groups    News    Froogle    more »},
   interhash   = {1b1188c0d058153ef8dad3084a055292}, 
   intrahash   = {1b1188c0d058153ef8dad3084a055292}
}

@electronic{www.alexa.com,
   title       = {Alexa Web Search}, 
   url         = {http://www.alexa.com/},
   biburl      = {https://puma.uni-kassel.de/url/f1a9caec802f73d3d7b6143990ea1a81/hotho},
   keywords    = {search web alexa engine suchmaschinen},
   added-at    = {2006-03-23T20:52:08.000+0100},
   description = {},
   interhash   = {f1a9caec802f73d3d7b6143990ea1a81}, 
   intrahash   = {f1a9caec802f73d3d7b6143990ea1a81}
}

@electronic{swoogle.umbc.edu,
   title       = {Swoogle Semantic Web Search Engine}, 
   url         = {http://swoogle.umbc.edu/},
   biburl      = {https://puma.uni-kassel.de/url/cec75bd0cfec5883a7df7d5349764345/hotho},
   keywords    = {search web engine suchmaschinen ontology semantic},
   added-at    = {2006-02-08T19:51:30.000+0100},
   description = {},
   interhash   = {cec75bd0cfec5883a7df7d5349764345}, 
   intrahash   = {cec75bd0cfec5883a7df7d5349764345}
}