11 1952 ' . - . .

- - ̳ ( 1974), - ( 1980), ̳ - ( 1985). 1988 . , 1991 . ' - .

( ) ' "" 1980 ., . " 糳", "", "", " ", . " " (1985), " ", " " (1992), " " ( " ", 1988). "" .