Note 7 — Chapter I · THE DAWN OF RUSSIAN HISTORY
Reading edition
S. Solov’ev, Istoriya Rossie. Karamzin, Histoire de Russie. Chronique de Nestor. Schiemann, Russland, Polen, und Livland. N. P. Barsov, Otcherke Rousskoy istoritcheskoy Geografie. V. Thomsen, The Relations between Ancient Russia and Scandinavia.