@electronic{taggle.de,
   title       = {Taggle - Social Bookmarking - taggle.de}, 
   url         = {http://taggle.de/},
   biburl      = {https://puma.uni-kassel.de/url/c430d356725ab78df5779dca0e06e488/hotho},
   keywords    = {social folksonomy bookmark tools german},
   added-at    = {2006-04-20T10:06:01.000+0200},
   description = {},
   interhash   = {c430d356725ab78df5779dca0e06e488}, 
   intrahash   = {c430d356725ab78df5779dca0e06e488}
}

@electronic{www.yigg.de,
   title       = {YiGG.de}, 
   url         = {http://www.yigg.de/},
   biburl      = {https://puma.uni-kassel.de/url/99118b74305af3c3905288e9e4c2bdc5/hotho},
   keywords    = {folksonomy tools german clone},
   added-at    = {2006-03-15T09:33:14.000+0100},
   description = {},
   interhash   = {99118b74305af3c3905288e9e4c2bdc5}, 
   intrahash   = {99118b74305af3c3905288e9e4c2bdc5}
}