For citations:
Zavyalova N.E., Yamaltdinova V.R., Shishkov D.G., Scryabina S.S., Kazakova I.V. Classical and modern approaches to the study of organic matter of sod-podzolic soils in the Middle Pre-Urals (analytical review). Agricultural Science Euro-North-East. 2025;26(3):470-498. (In Russ.) https://doi.org/10.30766/2072-9081.2025.26.3.470-498