Date Span
1985
3
May 1988
3
1989
2
May 1990
2
2 Jun 1987
1
29 Apr 1983
1
11 Jun 1984
1
13 Oct 1987
1
14 Oct 1985
1
15 Apr 1985
1
18 May 1986
1
1983
1
1984
1
1987
1
1990
1
2 Apr-27 Jun 1991
1
2 May 1986
1
2 May-30 Jun 1989
1
27 May 1981
1
27 Sep 1985
1
29 Sep 1986
1
3 May 1988
1
31 Mar 1987
1
31 Oct 1986
1
5 Mar 1990
1
5 May 1989
1
7 Nov 1981
1
8 May 1981
1
Apr 1988-May 1990
1
Aug 1983-Jun 1989
1
Dec 1981-1986
1
Dec 1986-Jul 1987
1
Dec 1990-Mar 1992
1
Feb 1988-Oct 1989
1
Feb-May 1988
1
Feb-May 1989
1
Jan 1989-Mar 1992
1
Mar 1981-Jan 1991
1
Mar 1986-Jan 1987
1
Mar-May 1990
1
Nov 1981-Aug 1984
1
Oct 1980-May 1984
1
Oct 1987-Apr 1988
1
Sep 1987-May 1988
1
[1982]
1
[1987]
1
[1988]
1
[Apr-Aug 1989]
1
[Feb-Jul 1988]
1
[Feb-Jul 1989]
1
more ...