@electronic{data.epo.org,
   title       = {EPO -}, 
   url         = {https://data.epo.org/},
   biburl      = {https://puma.uni-kassel.de/url/11a9ffcc313b4cb03e63a50dcbe4dc88/hotho},
   keywords    = {dataset patents},
   added-at    = {2012-04-24T16:00:44.000+0200},
   description = {},
   interhash   = {11a9ffcc313b4cb03e63a50dcbe4dc88}, 
   intrahash   = {11a9ffcc313b4cb03e63a50dcbe4dc88}
}

@electronic{www.google.com,
   title       = {Google Patents}, 
   url         = {http://www.google.com/patents},
   biburl      = {https://puma.uni-kassel.de/url/a787f5f52337df82a43d7f87f24cb7cc/hotho},
   keywords    = {search patents},
   added-at    = {2006-12-14T20:48:00.000+0100},
   description = {Killer!},
   interhash   = {a787f5f52337df82a43d7f87f24cb7cc}, 
   intrahash   = {a787f5f52337df82a43d7f87f24cb7cc}
}