(3LPhQ GdTHgGJ (B: s (3bQGAI aj MQcGJ GdNhGQL (B/ s - (3BdHh SYjO, fRGQ, s ((3dfOf (B[(3GfLdJQG(B] : s (3OGQ GdHQGb (B996.s, 1996)
(3jJVef cTGaGJ(B.s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B209-211.s
Keywords: (3GdNhGQLs -- (3JGQjN(B.s; (3eYQcI GdfgQhGf, (B38 (3g`(B.s