- Author: Hartmut Ernst, Jochen Schmidt, Gerd Beneken
- Language: German
- Year: 2023
- Author: Michael Oberst, Jörg Schmidt
- Language: German
- Year: 2023
- Author: Joachim Buddrus, Bernd Schmidt
- Language: German
- Year: 2014
- Author: Herbert H. Uhlig (editor), Kurt Schwabe (editor), Werner Schmidt (editor)
- Language: German
- Year: 1964
- Author: Helmut Bleiber (editor), Walter Schmidt (editor)
- Language: German
- Year: 1989
- Author: Karl Horst Schmidt
- Language: German
- Year: 1957
- Author: Carl von Schmidt-Phiseldeck (ed.) Harzverein für Geschichte und Altertumskunde (ed.)
- Language: German
- Year: 1874
- Author: Mustafa André Schmidt
- Language: German
- Year: 2021
