2 IZA Discussion Papers
IZA Discussion Paper No. 3251
revised version, published as: 'Determinants of Disaffiliation: An International Study', in: Religions, 2013, 4(1), 166-185
IZA Discussion Paper No. 2192
revised version published as 'Is Fertility Indeed Related to Religiosity? A Note on: 'Marital Fertility and Religion in Spain, 1985 and 1999' ' in: Population Studies, 2007, 60 (2), 219-224