- Author: Bertil Gustafsson (auth.)
- Language: English
- Year: 2011
- Author: Bertil Gustafsson (auth.)
- Language: English
- Year: 2011
- Author: Bertil Gustafsson (auth.)
- Language: English
- Year: 2008
- Author: Bertil Gustafsson (auth.)
- Language: English
- Year: 2008