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   title       = {open sTeam}, 
   url         = {http://www.open-steam.org/},
   biburl      = {https://puma.uni-kassel.de/url/e9ea7a83db485ba6c72eb52aaff912dc/kde},
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   title       = {Folksonomies - Cooperative Classification and Communication Through Shared Metadata}, 
   url         = {http://www.adammathes.com/academic/computer-mediated-communication/folksonomies.html},
   biburl      = {https://puma.uni-kassel.de/url/29f748fad27822fda7f77698523b683a/stephandoerfel},
   keywords    = {classification communication cooperative folksonomy metadata paper},
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