Date Span
13-17 Sep 1986
2
17-18 May 1986
2
27 Sep 1989
2
19 Sep 1988
1
26 May 1989
1
5 Aug 1986
1
1 Aug 1986
1
1 Feb 1987
1
1 Nov 1985
1
1 Oct 1989-21 Feb 1990
1
1 Oct-31 Oct 1991
1
1 Sep-12 Oct 1988
1
11 Dec 1991
1
11 Sep 1985
1
12 Sep 1984
1
12-18 Sep 1986
1
13 Oct-15 Dec 1988
1
16 Nov 1984-19 May 1986
1
16 Nov 1985
1
18 Sep 1985
1
1981-1984
1
1984
1
1988
1
2 Jul-29 Sep 1989
1
2 Jun 1984
1
21 Nov 1990
1
22 Feb-27 Apr 1990
1
24 Jul 1977
1
26 Sep 1989
1
27 Jun 1985
1
27 Jun 1989
1
30 Aug-1 Nov 1990
1
30 Aug-2 Sep 1987
1
30 Sep 1986
1
31 Aug 1984
1
5 Oct 1984
1
6 Jun 1984
1
6 May 1986
1
7-11 Sep 1984
1
8 Jun 1987
1
Aug 1992-Nov 1992
1
Feb 1977-Nov 1980
1
Feb-May 1988
1
Jan 1984
1
Jul 1983-Oct 1983
1
Mar 1988-Jul 1989
1
May 1974-Aug 1979
1
May-Nov 1988
1
Nov 1986
1
Nov 1987
1
more ...