(3eTcdGJ GdMVGQI (B: s (3GdUQGY GdacQj aj GdHdGO GdeSJYeQI (B/ s - (3eGdc Hf fHj, s 1905-1973(3, s ((3WQGHdS, dHfGf (B: s (3OGQ GdacQ, (B399 (3g`(B. = 1979.s, 1979)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdHdGO GdGSdGejIs -- (3MjGI acQjI(B.s; (3GdMVGQI GdGSdGejI(B.s; (3GdGeHQGWhQjI GdGSdGejI(B.s