(3CMcGe GdYbO hGdEQGOI GdefaQOI (B:s (3bGfhf GdeYGedGJ GdeOfjI GdShOGfj dSfI (B1984 (3e (B: (3OQGSI JWHjbjI (B/s - (3MGeO, JGL GdSQ eMeOs ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B](3,s, 2000)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdYbhO (B((3bGfhf eOfj(B)s -- (3GdShOGfs; (3GdEQGOI GdefaQOI (B((3bGfhf eOfj(B)s -- (3GdShOGfs