(3aj GdfbO GdbUUj (B/ s - (3YHGS, YHO GdLHGQ, s 1941-1992(3, s ((3HZOGO (B[(3GdYQGb(B] : s (3efThQGJ hRGQI GdKbGaI hGdGYdGe, OGQ GdQTjO ddfTQ (B980.s, 1980)
Keywords: (3GdbUI GdYQHjIs -- (3JGQjN hfbOs -- (3GdbQf (B20.s