@misc{GuderganKrechting2021,
  author    = {Gerhard Gudergan and Denis Krechting},
  title     = {Metropolitan Cities},
  booktitle = {UdZPraxis},
  volume    = {5},
  number    = {1},
  issn      = {2509-7350},
  institution = {FIR e. V. an der RWTH Aachen},
  type      = {contributiontoperiodical},
  pages     = {29 -- 31},
  year        = {2021},
}