@article{HaakeLudwigs2019,
  author    = {Haake, Hans and Ludwigs, Kai},
  title     = {Happy Wuppertal : measuring individual and community well-being on the urban scale},
  journal   = {International journal of community well-being},
  doi       = {10.1007/s42413-019-00025-x},
  year      = {2019},
  language  = {en}
}