@article{Willy2002,
  author    = {Heinz Willy},
  title     = {Die Obergrombacher Marienburg},
  journal   = {Badische Heimat},
  volume    = {82},
  number    = {2},
  pages     = {423 -- 426},
  doi       = {10.57962/regionalia-21658},
  year      = {2002},
}