S. Domonkos. International Journal of Social Welfare, 24 (2):
133-144(2015)First published online: August 7, 2014, http://dx.doi.org/10.1111/ijsw.12101. (Eurobarometer).
M. Callens, and B. Meuleman. International Journal of Comparative Sociology, (2016)First published online: August 29, 2016, http://dx.doi.org/10.1177/0020715216665437. (EVS).
J. Gelissen, W. van Oorschot, and E. Finsveen. European Societies, 14 (3):
416-440(2012)http://dx.doi.org/10.1080/14616696.2012.676660. (Eurobarometer).