- Author: Kristiansen Birgit
- Language: Danish
- Year: 2016
- Author: Kristiansen Birgit, Norman Lars
- Language: Danish
- Year: 2016
- Author: Kristiansen Birgit, Norman Lars
- Language: Danish
- Year: 2016
- Author: Kristiansen Ole
- Language: German
- Year: 2016
- Author: Hviid Jacobsen Michael, Kristiansen Søren
- Language: Danish
- Year: 2006
- Author: Bech-Jørgensen Birte, Kristiansen Søren
- Language: Danish
- Year: 2000
- Author: Earle Timothy K., Kristiansen Kristian
- Language: English
- Year: 2010
- Author: Birgit A. Olsen, Thomas Olander, Kristian Kristiansen
- Language: English
- Year: 2019
- Author: Christian Horn, Kristian Kristiansen
- Language: English
- Year: 2018