- Publication venue
- Publication date
- 01/10/1993
- Field of study
- Publication venue
- Publication date
- 01/01/1990
- Field of study
- Publication venue
- Publication date
- 01/01/1978
- Field of study
- Publication venue
- Publication date
- 01/01/1996
- Field of study
- Publication venue
- Publication date
- 01/01/1993
- Field of study
- Publication venue
- Publication date
- 01/01/1997
- Field of study
- Publication venue
- Publication date
- 01/01/1979
- Field of study
- Publication venue
- CEPS
- Publication date
- 01/01/2006
- Field of study
- Publication venue
- Publication date
- 01/01/1998
- Field of study