- 1981[position unknown]
- 1956Assistant Professor
- 1980[position unknown]
- 1988[position unknown]
- 1979[position unknown]
- 1980[position unknown]
- 1981[position unknown]
- 1982[position unknown]
- 1983[position unknown]
- 1984[position unknown]
- 1985[position unknown]
- 1986[position unknown]
- 1987[position unknown]