Bain 1971, p. 84 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, p. 117 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, p. 123 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, pp. 90–91 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, p. 84 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, p. 117 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, p. 123 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015
Bain 1971, pp. 90–91 Bain, Robert Nisbet (1971) [1908], Slavonic Europe, Cambridge historical, Cambridge: Cambridge University Press, archived from the original on 1 October 2023, retrieved 12 October 2015