@electronic{www.katja-marek.de,
   title       = {Dr. Katja Marek}, 
   url         = {http://www.katja-marek.de/km_vita.html},
   biburl      = {https://puma.uni-kassel.de/url/89b68d8edfdf5db765d13b6f16894b5e/droessler},
   keywords    = {identität kunst marek städtebau},
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@electronic{barrierefrei.de,
   title       = {Memo-Spiel Kuenstler | barrierefrei Shop}, 
   url         = {http://barrierefrei.de/barrierefrei-shop/kunst-memory-spiel.html?utm_source=merchantcenter},
   biburl      = {https://puma.uni-kassel.de/url/fbb0a5ee2c87acdb931a6d6a122b48e6/stumme},
   keywords    = {kunst memory},
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@electronic{www.amazon.de,
   title       = {Spiel mit Kunst für Kinder: Mit viel Spaß die Kunst entdecken: Amazon.de: Spielzeug}, 
   url         = {http://www.amazon.de/Spiel-mit-Kunst-f%C3%BCr-Kinder/dp/3763020233/ref=cm_cr_pr_product_top},
   biburl      = {https://puma.uni-kassel.de/url/5b7f9dd00b3f66356d9550ad782bd69b/stumme},
   keywords    = {kunst memory},
   added-at    = {2011-10-04T11:14:32.000+0200},
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