(3GdCWaGd GdegeThf (B:s (3bVGjGge hMbhbge (B/s - (3fGLj, QLGA(B.s ((3GdQHGW (B:s (3efThQGJ GdefXeI GdESdGejI ddJQHjI hGdYdhe hGdKbGaI,s, 1999)
(3HHdjhLQGajI (B: (3U(B. 113-115.s
Keywords: (3GdCWaGds -- (3CMhGd TNUjIs