Date Span
[Dec 1981]
1
16 Mar 1990
1
17 Jun 1986
1
18 Sep 1985
1
1981-1990
1
23 Mar 1986
1
24 Mar 1981
1
25 Apr 1987
1
29 Nov 1985
1
31 Oct 1986
1
6 Dec 1984
1
7 Nov 1981
1
Feb 1987
1
Feb 1988-Dec 1991
1
Jan 1980-May 1980
1
Jun 1979-Dec 1979
1
Jun 1980-Dec 1980
1
Jun 1982
1
Mar 1982-Feb 1984
1
Mar-Apr 1990
1
Oct 1985-Jan 1987
1
[1980s-1990s]
1
[1986-1990]
1
[Dec 1981-Feb 1983]
1
[Nov 1982-Jan 1983]
1
[Oct 1982]
1
n.d.
1
n.d. [1981-1990]
1