@article{Mumm2017,
  author    = {Hans-Martin Mumm},
  title     = {Der selige Friedrich von Hirsau († 8. Mai 1070)},
  journal   = {Heidelberg : Jahrbuch zur Geschichte der Stadt},
  volume    = {22 (2018)},
  pages     = {11 -- 18},
  doi       = {10.57962/regionalia-24285},
  year      = {2017},
}