1. Research Fellow at Goethe University, Frankfurt am Main, Germany, Garcia-MunozAlhambra@jur.uni-frankfurt.de
2. Assistant Professor European and international labour law and academic coordinator Adv LL.M Global and European Labour Law at Leiden University, the Netherlands, b.p.ter.haar@law.leidenuniv.nl
3. Associate Professor, Head of Department (Department of Labour Law and Social Security), Károli Gáspár University, (KRE) Faculty of Law, Budapest, Hungary & Associate Professor, National University of Public Service (NKE), Faculty of Political Sciences and Public Administration, Institute of Human Resources, Budapest, Hungary. kun.attila@kre.hu