1. Bardin, M.Yu., Variations of air temperature over western Russian territories and nearby countries in the XX century, Meteorol. Gidrol., 2002, No. 8, pp. 5–23.
2. Gidrologicheskie ezhegodniki (Hydrological Yearbooks), Leningrad: Gidrometeoizdat, 1936–1989, Vol. 9, No. 1, Bassein Belogo Morya (White Sea Basin), Vol. 1, nos. 0–3, Bassein Baltiiskogo Morya (Baltic Sea Basin).
3. Gruza, G.V. and Ran’kova, E.Ya., Nablyudaemye i ozhidaemye izmeneniya klimata Rossii: temperatura vozdukha (Observed and Expected Climate Changes in Russia: Air Temperature), Obninsk: VNIIGMI-MTsD, 2012.
4. Doklad ob osobennostyakh klimata na territorii Rossiiskoi Federatsii za 2010 god (Report on Climate Features in Russian Federation Territory for 2010), Moscow: Rosgidromet, 2011. http://wwwmeteorfru
5. Doklad ob osobennostyakh klimata na territorii Rossiiskoi Federatsii za 2011 god (Report on Climate Features in Russian Federation Territory for 2010), Moscow: Rosgidromet, 2012. http://wwwmeteorfru http://wwwmeteorfru