The map of the Kerch Peninsula, the shooting and reconnaissance of 1840 was drawn by topographers: Kovalev, Stepanov, Ryabchinsk...

The map of the Kerch Peninsula, the shooting and reconnaissance of 1840 was drawn by topographers: Kovalev, Stepanov, Ryabchinsky, Shvedkin, Zhulikov.- -.-XIX century.;Kart.Additional.298;51 x 84.5;Additional Agreement No. 1 of May 21, 2021 to the contract.No. 90-19 dated August 27, 2019 (Ban)..Electronic copy source: ban