Ivanova, N. S., E. S. Zolotova, and G. Li. “Influence of Soil Moisture Regime on the Species Diversity and Biomass of the Herb Layer of Pine Forests in the Ural Mountains”. Ecological Questions, vol. 32, no. 2, Dec. 2020, pp. 27-38, doi:10.12775/EQ.2021.011.