1. Bourdieu P (1984[1979]) Distinction: A social critique of the Judgment of Taste. Cambridge, MA: Harvard University Press.
2. Culture and Competition: Homophily and Distancing Explanations for Cultural Niches;NP Mark;Am Sociol Rev,2003
3. Elias N (1969[1939]) The Civilizing Process, Vol.I. The History of Manners. Oxford: Blackwell.
4. Tajfel H (1981) Human groups and social categories. Studies in social psychology. Cambridge, London, New York, New Rochelle, Melbourne and Syndey: Cambridge University Press.
5. Dynamics of political polarization;D Baldassarri;Am Sociol Rev,2007