(3KdGK QSGFd fMhjI (B: (3ebOeI GdCLQhejI (B/ s - (3EHf BLQhe, CHh YHO Gddg eMeOs; (3YHO GdMejO, eMeO eMji GdOjfs ((3HZOGO (B:s (3OGQ GdCfHGQ ddWHGYI hGdfTQ,s, 1991)
Keywords: (3bhGYO GddZIs; (3GddZI GdYQHjIs