(3GdWad heTcdGJ GdbQGAI (B/s - (3CMeO, CMeO YHO Gddg (B((3GdJQHjI hGdJYdje(B)s; (3eUWai, agjes ((3GdbGgQI (B:s (3GdOGQ GdeUQjI GddHfGfjI,s, 2000)
(3ZdGa eUhQ hedhf(B.s
(3HHdjhLQGajI (B: (3U(B. 218-222.s
Keywords: (3GdbQGAIs -- (3OQGSI hJYdje (B((3WahdI eHcQI(B)s; (3UYhHGJ GdbQGAIs