(3GdHGYK Ydi EfcGQ GdHOY hGdMhGOK (B/s - (3CHj TGeI, CHj GdbGSe YHOGdQMef Hf ESeGYjd GdebOSjs 555-624 (3gLQjs; (3Yjhf, HTjQ eMeOs ((3GdWGFa, GdSYhOjI ;s (3ecJHI GdeDjO,s, 1991)
Keywords: (3CUhd Gdabgs -- (3GdSfIs; (3GdHOY aj GdESdGes; (3GdHOY GdOjfjIs