Soms, J. and Laizāns, K. 2015. Application Of Geographic Information Systems (Gis) In Analysis Of Geological Risk Factors And Assessment Of Geohazards In Daugavpils And Ilūkste Districts. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference. 1, (Aug. 2015), 24–30. DOI:https://doi.org/10.17770/etr2011vol1.922.