Vinogradov, Sergey, Elena Savelyeva, Oleg Likholet, and Oleg Khotinetskiy. 2022. “Problems of Transport Communication Development On the Caspian Sea in the Context Oh the Discussion On the Construction of the Caspian-Volga Channel In the Early 20th Century”. Journal of Frontier Studies 7 (3), 140-52. https://doi.org/10.46539/jfs.v7i3.427.