, 48- , .
, . "" , . , . , , . .
" " (1980), " " (1982), " " (1985). , . " " (1985), " " (1988), " " (1997), " " (1999) . " " (1989) .
- - " " (1998) , , , . " , . . . . . . - , , . , , - ",- .
, , " ". , " ". . , , , .