@article{Trentini2011,
author = "Trentini, C.",
title = "Ethnic patterns of returns to education in Bulgaria: do minorities have an incentive to invest in education?",
year = 2011,
journal = "Unece Discussion Papers",
volume = 1,
pages = "23",
url = "http://www.unece.org/fileadmin/DAM/oes/disc_papers/ECE_DP_2011-1.pdf"
}