For citations:

Filatova A.I., Mamontov V.G., Panova P.Yu. MOLECULAR WEIGHT COMPOSITION OF HUMIC ACIDS IN URBAN SOILS (THE NORTHERN ADMINISTRATIVE DISTRICT OF MOSCOW CITY TAKEN AS AN EXAMPLE). Dokuchaev Soil Bulletin. 2019;(97):113-128. https://doi.org/10.19047/0136-1694-2019-97-113-128