- Author: Inge Adriansen Jens Ole Christensen
- Language: English
- Year: 2013
- Author: Ole Christensen
- Language: English
- Year: 2016
- Author: Ole Christensen (auth.)
- Language: English
- Year: 2016
- Author: Ole Christensen (auth.)
- Language: English
- Year: 2003
- Author: Ole Christensen Khadija L. Christensen (auth.)
- Language: English
- Year: 2005
- Author: Ole Christensen (auth.)
- Language: English
- Year: 2010
- Author: Ole Christensen (auth.)
- Language: English
- Year: 2010
- Author: Ole Christensen (auth.)
- Language: English
- Year: 2010
- Author: Ole Christensen Khadija Laghrida Christensen
- Language: Indo, European
- Year: 2004
- Author: Ole Christensen Khadija Laghrida Christensen
- Language: Indo, European
- Year: 2004