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Nikolai II của Nga Nikolay Vasilyevich Gogol Nikolay Nikolayevich Con của Nga Nikolay Fyodorovich Vatutin Nikolay Przhevalsky Nikolai Andreyevich Rimsky-Korsakov Nikolay Ivanovich Ryzhkov Nikolay Ivanovich Yezhov Nikolai Ivanovich Lobachevsky Nikolay Nikolayevich Cha của NgaTài liệu tham khảo
WikiPedia: Nikolay Przhevalsky http://uahistory.com/topics/famous_people/4432 http://www.mepc.org/journal_vol7/0006_nalle.asp http://www.rgs.org/NR/rdonlyres/C5962519-882A-4C67... //www.worldcat.org/issn/1061-1924 http://www.vokrugsveta.ru/vs/article/3685/ http://idp.bl.uk/archives/news27/idpnews_27.a4d#2 https://books.google.com/books?id=3pCz4OmRW-0C&pg=... https://books.google.com/books?id=9Z_vTUUYxkgC&pg=... https://books.google.com/books?id=FPnO0MyfsJEC&pg=... https://books.google.com/books?id=SDoiTsY-Ry0C&pg=...