@article{Georgiev2021characteristics,
author={Georgiev, A.. and Legun, A.. and Pogosyan, V..},
title={Characteristics of perch fish diet  in small lake of Lake Onega catchment area},
journal={Vestnik of Astrakhan State Technical University. Series: Fishing industry},
publisher={Astrakhan State Technical University},
year={2021},
pages={73-79},
volume={},
issue={4},
}