Soms, Juris. 2015. “Soil Erosion Risk Assessment at Small Catchments Scale: Comparison of GIS-Based Modelling and Field Survey Data and Its Implication for Environmental Maintenance of Rivers”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June): 289-96. https://doi.org/10.17770/etr2015vol2.233.