(3HMhK GdeDJeQ GdChd ddEYLGR GdbQBfj (B/s - (3eDJeQ GdEYLGR GdbQBfjs 1990 : (3HZOGO(B)s; (3GdYQGb(B.s (3hRGQI GdChbGa hGdTDhf GdOjfjIs ((3HZOGO (B:s (3hRGQI GdChbGa hGdTDhf GdOjfjI,s, 1990)
Keywords: (3GdbQBfs -- (3EYLGRs; (3GdbQBfs -- (3HMhKs