Diplomaticheskie donesenii︠a︡, pisʹma, zapiski : otchety 1865-1872 /

Dahkki Leontʹev, Konstantin, 1831-1891
Almmustuhtton 2003

Some materials for the study of the historical geography of Russia of the 18th and early 19th centuries in the archives and libraries of Moscow and St. Petersburg /

Dahkki Kabuzan, V. M. (Vladimir Maksimovich)
Almmustuhtton 1997