@article{Kovalenko2020selective,
author={Kovalenko, S.N.},
title={Selective statistical estimates of multi-year monthly concentrations of biogenous pollution of small rivers of the Northwest zone of the Russian Federation},
journal={Melioration and Water Management},
publisher={ANO Editorial Board Melioration and water management},
year={2020},
pages={9-13},
volume={2019},
issue={1},
}