@article{Gruening2020,
  author    = {Helmut Gr{\"u}ning},
  title     = {Pro und Contra urbanes Gr{\"u}n},
  journal   = {Transforming Cities},
  volume    = {5 (2020)},
  number    = {4},
  pages     = {63 -- 67},
  year      = {2020},
}