@article{Cai2022conditions,
author={Cai, Y..},
title={Conditions for the development of river tourist traffic on the Amur River between the Russian Far East and Heilongjiang Province},
journal={Ojkumena. Regional Researches},
publisher={Vladivostok State University},
year={2022},
pages={69-81},
volume={0},
issue={3},
}