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E. Bacchiocchi, M. Florio, and M. Gambaro. Telecommunications Policy, 35 (4):
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P. Ferrari, L. Pagani, and C. Fiorio. Social Indicators Research, 104 (3):
545-554(2011)First published online: December 03, 2010, http://dx.doi.org/10.1007/s11205-010-9761-x. (Eurobarometer).
T. Sun. International Journal of Consumer Studies, 35 (3):
330--337(2011)First published online: October 12, 2010, http://dx.doi.org/10.1111/j.1470-6431.2010.00938.x. (Eurobarometer).
M. Kayser, and C. Wlezien. European Journal of Political Research, 50 (3):
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