Martinovs, Andris, Rasma Tretjakova, Rene Castro, Vladimir Solovyev, Josef Timmerberg, Alexander Cvetkov, Sergey Gango, et al. “EFFECT OF HEAT TREATMENT ON ELECTRICAL AND MECHANICAL PROPERTIES OF THE SOLID SAPROPEL”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 200–206. Accessed May 2, 2024. https://journals.ru.lv/index.php/ETR/article/view/2611.