4 IZA Discussion Papers
IZA Discussion Paper No. 9570
IZA Discussion Paper No. 9569
IZA Discussion Paper No. 9503
published in: PLoS ONE, 2016, 11 (8), e0162080
IZA Discussion Paper No. 9427
published in: Cityscape - A Journal of Policy Development and Research, 2016, 18 (3), 185-198