- Publication venue
- Publication date
- 01/01/2013
- Field of study
- Publication venue
- Publication date
- 01/10/1992
- Field of study
- Publication venue
- 'Portland Press Ltd.'
- Publication date
- Field of study
- Publication venue
- Publication date
- 01/02/1997
- Field of study
- Publication venue
- Publication date
- 11/08/1990
- Field of study