- Author: Jan Alber (editor), Greta Olson (editor), Birte Christ (editor)
- Language: English
- Year: 2017
- Author: Jan Alber (editor), Greta Olson (editor), Birte Christ (editor)
- Language: English
- Year: 2017
- Author: Greta Olson (editor)
- Language: English
- Year: 2011