ru %D0%A3%D1%87%D0%B0%D1%81%D1%82%D0%BD%D0%B8%D0%BA:%D0%98%D0%B3%D0%BE%D1%80%D1%8C(%D0%9F%D0%B8%D1%82%D0%B5%D1%80) %D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:%D0%9A%D0%BD%D0%B8%D0%B3%D0%B0:Engel B., Martin J.: Russia in World History