(3GdeHGMK GdHdGZjI aj VhA bVjI GdEYLGR GdbQBfj (B:s (3fTCJgG hJWhQgG aj GdbQf GdSGHY GdgLQj (B/s - (3GdYeQj, CMeO LeGds ((3GdbGgQI (B:s (3ecJHI GdNGfLj,s, 1990)
(3HHdjhLQGajI (B: (3U(B. 353-358.s
Keywords: (3GdbQBfs -- (3HdGZIs; (3GdbQBfs -- (3EYLGR dZhjs; (3GdbQBfs -- (3CdaGXs