@electronic{vimeo.com,
   title       = {Le papier ne sera jamais mort / Paper is not dead ! on Vimeo}, 
   url         = {http://vimeo.com/61275290},
   biburl      = {https://puma.uni-kassel.de/url/bad0ed7e7da2abb77ceb3f127e6a3705/stumme},
   keywords    = {Papier iPad paper tablet},
   added-at    = {2013-03-12T17:49:46.000+0100},
   description = {},
   interhash   = {bad0ed7e7da2abb77ceb3f127e6a3705}, 
   intrahash   = {bad0ed7e7da2abb77ceb3f127e6a3705}
}

@electronic{paperc.de,
   title       = {PaperC}, 
   url         = {http://paperc.de/advanced_search?conditions%5Bplain_text%5D=&conditions%5Btitle%5D=&conditions%5Bsubtitle%5D=&conditions%5Bcontributors%5D=saake&conditions%5Bpublisher_display_name%5D=&with%5Byear_of_publication%5D%5Bbegin%5D=&with%5Byear_of_publication%5D%5Bend%5D=&conditions%5Blanguage%5D=&commit=Suchen},
   biburl      = {https://puma.uni-kassel.de/url/a90d46477f3151e4d01fa276f404f72f/stumme},
   keywords    = {books buch bücher paper paperc},
   added-at    = {2010-08-26T14:47:40.000+0200},
   description = {},
   interhash   = {a90d46477f3151e4d01fa276f404f72f}, 
   intrahash   = {a90d46477f3151e4d01fa276f404f72f}
}