TOBIAŠOVÁ, Erika et al. Humus substances and soil aggregates in the soils with different texture. In Soil and water research. ISSN 1801-5395, 2018, vol. 13, no. 1, p. 44-50. APVV-14-0087. CCC, WOS, SCOPUS. Dostupné na internete: <https://www.agriculturejournals.cz/publicFiles/31_2017-SWR.pdf>