TY - JOUR A1 - Koytcheva, E. A1 - Philipov, D. T1 - Bulgaria: Ethnic differentials in rapidly declining fertility Y1 - 2008 DO - 10.4054/DemRes.2008.19.13 UR - http://www.demographic-research.org/Volumes/Vol19/13/ JF - Demographic Research VL - 19 IS - 13 ER -