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Lev_PontryaginLiên quan
Lev Pontryagin Lev Davidovich Trotsky Lev Nikolayevich Tolstoy Lev Ivanovich Yashin Lev Vygotsky Lev Zakharovich Mekhlis Lev Davidovich Landau Lev Mikhailovich Dovator Lev Borisovich Kamenev Lev SchnirelmannTài liệu tham khảo
WikiPedia: Lev_Pontryagin http://books.google.com/books?id=1DrQvgK5q9cC&pg=P... http://www.genealogy.ams.org/html/id.phtml?id=4907... http://ega-math.narod.ru/LSP/book.htm http://www-history.mcs.st-andrews.ac.uk/Biographie... http://www-history.mcs.st-andrews.ac.uk/Biographie...