TY - CHAP A1 - Bühler, C. A1 - Philipov, D. T1 - Social capital related to fertility: theoretical foundations and empirical evidence from Bulgaria Y1 - 2005 DO - 10.1553/populationyearbook2005s53 A3 - Lutz, W. A3 - Fechtinger, G. T2 - Vienna Yearbook of Population Research 2005 CY - Vienna PB - Austrian Academy of Sciences Press ER -