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E. Bacchiocchi, M. Florio, und M. Gambaro. Telecommunications Policy, 35 (4):
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P. Ferrari, L. Pagani, und C. Fiorio. Social Indicators Research, 104 (3):
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T. Sun. International Journal of Consumer Studies, 35 (3):
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M. Kayser, und C. Wlezien. European Journal of Political Research, 50 (3):
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A. Okulicz-Kozaryn. Journal of Happiness Studies, 12 (2):
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P. Dostal, E. Akcali, und M. Antonsich. Eurasian Geography and Economics, 52 (2):
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I. Bogdanovica, F. Godfrey, A. McNeill, und J. Britton. Tobacco Control, 20 (4):
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C. Williams, S. Nadin, und M. Baric. International Entrepreneurship and Management Journal, 7 (3):
341(2011)First published online: July 06, 2011, http://dx.doi.org/10.1007/s11365-011-0195-y. (Eurobarometer).
J. Sprague-Jones. Ethnic and Racial Studies, 34 (4):
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J. Gerhards, und S. Hans. JCMS: Journal of Common Market Studies, 49 (4):
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