Complex sentence: Author of 40 articles on the history of the southern and western Slavs, on general history and the history of political doctrines.Researcher in the pages of Russian periodical press in the second half of the XIX and early XX century.
Split into simpler sentences: Author of 40 articles on the history of the southern and western Slavs, on general history and the history of political doctrines. Issledovatelslavyanskogo issue in the pages of Russian periodical press in the second half of the XIX and early XX century.