@article{SchmidtWellenburgMackert2018,
  author    = {Christian Schmidt-Wellenburg and J{\"u}rgen Mackert},
  title     = {EU-Citizenship},
  journal   = {Europasoziologie : Handbuch f{\"u}r Wissenschaft und Studium},
  pages     = {120 -- 129},
  year      = {2018},
}