@article{Chemagin2021structure, author={Chemagin, A..}, title={Structure of poaching sturgeon species in the Irtysh River in 2013-2020 (according to ichthyologic examinations)}, journal={Vestnik of Astrakhan State Technical University. Series: Fishing industry}, publisher={Astrakhan State Technical University}, year={2021}, pages={17-23}, volume={}, issue={4}, }