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Christoffer Rydland (2013). Aspects of Cooperation and Corporate Governance in the Swedish Regional Newspaper Industry (PhD thesis). Stockholm School of Economics. CiteSeerX10.1.1.691.9551. ISBN9789172588851.
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Mart Ots (2012). "Competition, Collaboration and Cooperation: Swedish Provincial Newspaper Markets In Transition". Journal of Media Business Studies. 9 (2): 48, 52. doi:10.1080/16522354.2012.11073543. S2CID168143084.