(3GdONd hGdJWhQ GdGbJUGOj aj GdHdGO GdYQHjI (B: s (3eMGVQGJ (B/ s - (3YGThQ, YUGe jhSa, s ([(3GdbGgQI, eUQ(B] : s (3LGeYI GdOhd GdYQHjI, eYgO GdOQGSGJ GdYQHjI GdYGdjI (B962.s, 1962)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdHdGO GdYQHjIs -- (3GMhGd GbJUGOjI(B.s; (3GdHdGO GdYQHjIs -- (3SjGSI GbJUGOjI(B.s