08/1991-05/1995
05/1992-05/1998
05/1992-04/1997
07/1992-04/1997
05/1992-11/1997
05/1992-07/1997
05/1992-05/1995
05/1992-10/1997
08/1991-10/1995
08/1991-11/2001