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Voprosy formirovanii︠a︡ russkogo naselenii︠a︡ Sibiri v XVII-nachale XIX vv : [Sb. stateĭ
Kolesnikov, Aleksandr Dmitrievich, (1978)
Russian settlement in the North
Armstrong, Terence, (1965)
The Russian eastward movement : some observations on its historical significance
Kerner, Robert Joseph, (1967)