09/07/2011

http://cci.som.yale.edu/cci/sites/cci.som.yale.edu/files/GrouponCase.pdf

08/03/2011

http://professional.wsj.com/article/SB10001424053111903885604576486330882679982.html?mg=reno-secaucus-wsj

08/01/2011

http://www.nationalpost.com/news/Making+price+indulgence+right/5190539/story.html

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