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   title       = {Intelligent Information Retrieval - DePaul University}, 
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@electronic{www-db.informatik.uni-tuebingen.de,
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   title       = {CSE 397_497_ WWW Search Engines_ Algorithms, Ar...}, 
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@electronic{www.cs.cornell.edu,
   title       = {CS430/INFO430: Information Retrieval}, 
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@electronic{www.cs.utexas.edu,
   title       = {CS 371R: Information Retrieval and Web Search}, 
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