Kolonizacija severnych okrain drevnej Rusi v XI-XIII vv. : po materialam arkheologičeskich pamjatnikov na volokach Belozer'ja i Poonež'ja = Colonization of the northern periphery of ancient Russia, 1000-1300 a.d : in the light of archaeological data from the portages of Beloozero and Onega river regions
Nikolaj A. Makarov
Bok Russisk 1997