@electronic{www.ip-phone-forum.de,
   title       = {NEU Skript Jpascher LINK - IP-Phone-Forum}, 
   url         = {http://www.ip-phone-forum.de/showthread.php?t=155864},
   biburl      = {https://puma.uni-kassel.de/url/c440aa68cf2f4fc187fde6cc15a213d8/hotho},
   keywords    = {avm fritz skript speedport},
   added-at    = {2010-02-23T19:55:43.000+0100},
   description = {Speedport2Fritz Oberfläche der Fritz!Boxen von AVM auf Speedport},
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@electronic{www-db.informatik.uni-tuebingen.de,
   title       = {Information Retrieval: Datenstrukturen und algorithmische Grundlagen}, 
   url         = {http://www-db.informatik.uni-tuebingen.de/~becker/ir/},
   biburl      = {https://puma.uni-kassel.de/url/29177716a516765758f687ae8dc42397/hotho},
   keywords    = {lecture folien skript vorlesung ir becker},
   added-at    = {2006-01-10T13:50:57.000+0100},
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