Convergence and divergence in private international law : liber amicorum Kurt Siehr / ed. by Katharina Boele-Woelki ... [et al.]Convergence and Europeanisation : the political economy of social and labour market policies / Olaf Peter van VlietConvergence and Europeanisation : the political economy of social and labour market policies / Olaf Peter van VlietConvergence and divergence in private international law : liber amicorum Kurt Siehr / ed. by Katharina Boele-Woelki ... [et al.]Convergence and Europeanisation : the political economy of social and labour market policies / Olaf Peter van Vliet