@article{Keller2007,
  author    = {Volker Keller},
  title     = {Der Verein Stadtbild Mannheim},
  journal   = {Badische Heimat},
  volume    = {87},
  number    = {1},
  pages     = {190 -- 190},
  doi       = {10.57962/regionalia-155},
  year      = {2007},
}