Soms J, Ošmjanskis Ēriks. CLASTIC QUATERNARY SEDIMENTS OF THE AUGŠDAUGAVA SPILLWAY VALLEY AS NATURAL RESOURCES – GRAIN SIZE DISTRIBUTION AND MICROMORPHOLOGY OF QUARTZ GRAINS AS INDICATORS FOR DISTINGUISHING ALLUVIAL AND GLACIOFLUVIAL SAND DEPOSITS. ETR [Internet]. 2019 Jun. 20 [cited 2024 Dec. 22];1:272-6. Available from: https://journals23.rta.lv/index.php/ETR/article/view/4094