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Russian diplomacy and the opening of the Eastern question in 1838 and 1839
Mosely, Philip E., (1969)
George Frederick Koehler, James Bland Burges et les relations anglo-turques de 1791 à 1793
Hope, Trevor J., (1974)
Russia and the question of Constantinopole and the Turkish straits during the Balkan wars
Zotiades, George B., (1970)