Sapropel – Mining Characteristics and Potential Use in Medicine
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Hydrothermal Humification of Extracted Spruce Greenery Biomass as a Tool for End-of-Waste Approach for Production of Artificial Humic Substances
Arbidans, Lauris, Mezulis, Marcis, Dobkevica, Linda, Antuzevics, Andris, Zarins, Arturs, Klavins, Maris