Chapter III · The Time of Tatar Domination (1235-1462 A.D.)
Reading edition
b R. N. Bestuzhev-Riumin, Russian History.
c D. M. Wallace, Russia.
d R. Bell, A History of Russia.
e S. M. Soloviov, History of Russia from the Earliest Times.
f N. Turgeniev, La Russie et les Russes.
g W. K. Kelly, History of Russia.
h N. I. Kostomarov, Russian History.
i A. Brückner, Geschichte Russlands.