A. Ceobanu, and T. Koropeckyj-Cox. Population Research and Policy Review, 32 (2):
261--284(2013)First published online: October 19, 2012. http://dx.doi.org/10.1007/s11113-012-9260-7. (Eurobarometer).
J. Delhey, E. Deutschmann, and K. Cirlanaru. International Sociology, 30 (3):
269-293(2015)http://dx.doi.org/10.1177/0268580915578744. (Eurobarometer).
A. Okulicz-Kozaryn. Journal of Happiness Studies, 12 (2):
225-243(2011)First published online: February 11, 2010, http://dx.doi.org/10.1007/s10902-010-9188-8. (Eurobarometer).
A. Schnabel, and F. Grötsch. KZfSS Kölner Zeitschrift für Soziologie und Sozialpsychologie, 67 (1):
1-25(2015)http://dx.doi.org/10.1007/s11577-014-0295-0. (EVS).
J. Sprague-Jones. Ethnic and Racial Studies, 34 (4):
535-555(2011)First published online: October 14, 2010, http://dx.doi.org/10.1080/01419870.2010.512665. (Eurobarometer).