(3GdeTcdGJ GdHjFjI aj GdhWf GdYQHj HYO MQH JMQjQ GdchjJ (B/ s - (3GdYhVj, YHO GdQMef YHO Gddg s ((3GdUaGI, GdchjJ (B: s (3GdeYgO GdYQHj ddJNWjW, s, 1992)
Keywords: (3GdHjFI s -- (3GdHdGO GdYQHjI s; (3MQH GdNdjL, (B1991s -- (3LhGfH HjFjI s; (3MeGjI GdHjFI s -- (3GdHdGO GdYQHjIs; (3JdhK GdHjFIs -- (3GdHdGO GdYQHjI s