^V. Minorsky, Studies in Caucasian History, Cambridge University Press, 1957. pg 112
^Clifford Edmund Bosworth, The New Islamic Dynasties, 148-149. "..their centres at Tarum and Samiran, and then in Azerbaijan and Arran..", "..into Azerbaijan, Arran, some districts of Eastern Armenia and as far as Darband in the Caspian coast."
^V. Minorsky, Studies in Caucasian history, Cambridge University Press, 1957. pg 110
