(3QhM GdCQhGM aj GdhYX h GdehGYX h GdCNdGb h GdRgO (B/ s - (3EHf GdLhRj, CHh GdaQL YHO GdQMef (B.s; (3GdTgGhj, eMeOs ((3GdefUhQI (B: s (3ecJHI GdCjeGf, s, 1997)
Keywords: (3GdhYX h GdEQTGO(B. s; (3GdTYGFQ GdOjfjI(B. s; (3GdRgO(B. s