Vilde, A. “IMPACT OF SOIL MOISTURE AND COMPOSITION ON ITS PROPERTIES AND ENERGY CONSUMPTION OF TILLAGE”.
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 26, 2006): 288–293. Accessed April 6, 2025.
https://journals23.rta.lv/index.php/ETR/article/view/2022.