@article{Travkin2026estimation, author={Travkin, V.S. and Mischenko, N.A. and Evseev, E.Y. and Travkina, A.R.}, title={ESTIMATION OF OPERATING COSTS WHEN USING A COMBINED IRRIGATION SYSTEM}, journal={MOSCOW ECONOMIC JOURNAL}, publisher={Electronic science}, year={2026}, pages={9-26}, volume={11}, issue={6}, }