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2007 | ||
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2 | EE | Lisa M. George: What's fit to print: The effect of ownership concentration on product variety in daily newspaper markets. Information Economics and Policy 19(3-4): 285-303 (2007) |
2001 | ||
1 | EE | Lisa M. George: What's Fit To Print: The Effect Of Ownership Concentration On Product Variety In Daily Newspaper Markets CoRR cs.CY/0108014: (2001) |