 . 

      (1976). .    -   .  1987  1998        ,   : "  ", "  " (  ), ",   ";   "  "   .          (1996-1999).

 7      .

    6- .

   1980    .   "" ( 1980).

 1987     ,  , .    .     ().       ().

     - (1980),  (1980),  (1981),  (1982),    (1981).   (1986)    ,      " ",   ""    "".

   .

 1980  1988 .   "".

   : ., ., ., .. .,   ,  ,  ,     .

  , , , ,  "".

     . ..

:   " " (1990),   " " (1990)  CD " " (1998)   .,  " " (1997,   1998 .     "").