@electronic{basex.org,
   title       = {BaseX | The XML Database}, 
   url         = {http://basex.org/},
   biburl      = {https://puma.uni-kassel.de/url/1794fc5592bc4293724fff8a155ac7d5/benz},
   keywords    = {basex database free open_source xml},
   added-at    = {2011-03-24T23:23:07.000+0100},
   description = {BaseX is a light-weight, high-performance and scalable XML database system and XPath/XQuery processor, including full support for the W3C Update and Full Text extensions. An interactive and user-friendly GUI frontend gives you great insight into large XML data instances. },
   interhash   = {1794fc5592bc4293724fff8a155ac7d5}, 
   intrahash   = {1794fc5592bc4293724fff8a155ac7d5}
}

@electronic{www.freebase.com,
   title       = {Freebase}, 
   url         = {http://www.freebase.com/},
   biburl      = {https://puma.uni-kassel.de/url/193612a435d56c7ab567dc67421c6fbf/stumme},
   keywords    = {database free web20},
   added-at    = {2009-04-28T15:34:27.000+0200},
   description = {},
   interhash   = {193612a435d56c7ab567dc67421c6fbf}, 
   intrahash   = {193612a435d56c7ab567dc67421c6fbf}
}

@electronic{www.freebase.com,
   title       = {Freebase : Sign In}, 
   url         = {http://www.freebase.com/signin.html},
   biburl      = {https://puma.uni-kassel.de/url/f82fcd1c8e4d2038716a1d84cffb3a2b/hotho},
   keywords    = {database free tools},
   added-at    = {2007-05-08T23:35:33.000+0200},
   description = {},
   interhash   = {f82fcd1c8e4d2038716a1d84cffb3a2b}, 
   intrahash   = {f82fcd1c8e4d2038716a1d84cffb3a2b}
}