@incollection{steenweg1989karte,
  author = {Last, Martin and Schütte, Sven and Steenweg, Helge},
  booktitle = {Geschichtlicher Handatlas Niedersachsen},
  editor = {Patze, Hans},
  interhash = {f2f1b3524205e3e4eea8d119486ab268},
  intrahash = {aa25529e8a1b8b128969493bfa5a8a8d},
  title = {Karte: "Göttingen um 1400"},
  year = 1989
}

@article{steenweg1989stift,
  author = {Steenweg, Helge},
  interhash = {fe9371db305d44cb1d66b1a8bc3ac2ab},
  intrahash = {668f0df4f5f280954a8d7e0391e17767},
  journal = {Südniedersachsen},
  pages = {48-51.},
  title = {Das Stift St. Alexandri in Einbeck},
  volume = 17,
  year = 1989
}

@article{steenweg1989leben,
  author = {Steenweg, Helge},
  interhash = {d7d47ba3639774ac4b41b2fcf7acd5c7},
  intrahash = {e5d1e72fbd91418d548389a413fc81bd},
  journal = {Einbecker Jahrbuch},
  pages = {1-30.},
  title = {Das Leben auf den Amtmannssitzen und früheren Residenzen Salzderhelden und Rotenkirchen im 16.  und 17. Jahrhundert},
  volume = 40,
  year = 1989
}