@article{Knizhnikov2020organization,
author={Knizhnikov, V.A.},
title={Organization of river transport operations on small rivers of the Tyumen region in the first half of the 1960s},
journal={Bulletin of Nizhnevartovsk State University},
publisher={Nizhnevartovsk State University},
year={2020},
pages={54-60},
volume={},
issue={4},
}