@electronic{invenio-software.org,
   title       = {Invenio}, 
   url         = {http://invenio-software.org/},
   biburl      = {https://puma.uni-kassel.de/url/11f51f712508203fc64ed63e164a0724/hotho},
   keywords    = {dl document open python repository source},
   added-at    = {2015-03-12T09:29:50.000+0100},
   description = {Invenio is a free, open-source software to run a digital library or document repository on the web.},
   interhash   = {11f51f712508203fc64ed63e164a0724}, 
   intrahash   = {11f51f712508203fc64ed63e164a0724}
}

@electronic{de.scientificcommons.org,
   title       = {Scientific Commons | A Community for Scientific Information}, 
   url         = {http://de.scientificcommons.org/},
   biburl      = {https://puma.uni-kassel.de/url/550256d957f1253a0be2480942e1a831/hotho},
   keywords    = {access information literature oai open publication recherche repository scholar science search},
   added-at    = {2008-05-20T13:30:44.000+0200},
   description = {},
   interhash   = {550256d957f1253a0be2480942e1a831}, 
   intrahash   = {550256d957f1253a0be2480942e1a831}
}

@electronic{www.openrdf.org,
   title       = {Sesame}, 
   url         = {http://www.openrdf.org/},
   biburl      = {https://puma.uni-kassel.de/url/033e019da98743a041230753a958ef0e/hotho},
   keywords    = {Sesame database rdf repository semantic store web},
   added-at    = {2007-03-23T14:12:41.000+0100},
   description = {Sesame is an open source RDF database with support for RDF Schema inferencing and querying.},
   interhash   = {033e019da98743a041230753a958ef0e}, 
   intrahash   = {033e019da98743a041230753a958ef0e}
}