- Publication venue
- eGrove
- Publication date
- 04/08/1987
- Field of study
- Publication venue
- eGrove
- Publication date
- 05/08/1988
- Field of study
- Publication venue
- eGrove
- Publication date
- 25/07/2005
- Field of study
- Publication venue
- eGrove
- Publication date
- 28/07/2005
- Field of study