(3eYLe eaQOGJ GdEHOGd hGdEYdGd aj GdbQBf GdcQje (B/s - (3GdNQGW, CMeO eMeOs ((3OeTb (B:s (3OGQ Gdbde,s, 1989)
(3jTJed Ydi cTGaGJ(B.s
(3HHdjhLQGajI (B: (3U(B. 531-536.s
Keywords: (3GdbQBfs -- (3eYGLes; (3GdbQBfs -- (3eYGLes