08/1979-05/1983
08/1981-05/1983
08/1979-08/1982
08/1981-08/1982
08/1981-08/1983
08/1982-05/1983
08/1979-07/1987
08/1982-07/1987
08/1980-07/1987
07/1980-04/1982
08/1981-10/1984
08/1981-06/1984
08/1979-06/1984
07/1980-04/1984
12/1980-04/1984
08/1980-05/1983
04/1982-02/1985
08/1981-09/1983