@article{HerzogSinger2019,
  author    = {Thomas Herzog-Singer},
  title     = {Foto und Optik Singer},
  journal   = {Villingen im Wandel der Zeit},
  series    = {125 Jahre Tradition in der Oberen Straße},
  volume    = {42},
  pages     = {158 -- 162},
  doi       = {10.57962/regionalia-16534},
  year      = {2019},
}