@article{Ringwald2003,
  author    = {Klaus Ringwald},
  title     = {Die Kirchenportale am Villinger M{\"u}nster},
  journal   = {Villingen im Wandel der Zeit},
  series    = {die ganze Kraft und Konzentration in das Werk gelegt : Text von 1985},
  volume    = {26},
  pages     = {31 -- 39},
  doi       = {10.57962/regionalia-16608},
  year      = {2003},
}