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Keywords: (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjK (B- (3YUQ eMeO Ydi (B( 1805- 1849 (3e (B)s; (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjK (B(1805 - 1956 )s