(3QjGV GdGWaGd aj GdLeghQjI GdYQGbjI (B: s (3JWhQgG heTcdGJgG hGSSgG GdJQHhjI hGdfaSjI (B/ s - (3eQOGf, fLe GdOjf Ydj, s 1933-(3, s ((3HZOGO (B[(3GdYQGb(B] : s (3eWHYI GdRgQGA (B970.s, 1970)
(3SGYOJ LGeYI HZOGO Ydi fTQg(B.s
(3GdGUd QSGdI LGeYjI (B((3eGLSJjQ(B) - (3LGeYI HZOGO, (B1970.s
(3jJVef edGMb(B.s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B287-296.s
Keywords: (3QjGV GdGWaGds -- (3JGQjNs -- (3GdYQGb(B.s