@article{Keller2005,
  author    = {Volker Keller},
  title     = {Die Hausfassade J 4, 2a in der Mannheimer Innenstadt},
  journal   = {Badische Heimat},
  volume    = {85},
  number    = {3},
  pages     = {438 -- 445},
  doi       = {10.57962/regionalia-76},
  year      = {2005},
}