Pleikšnis, Staņislavs, and Ilze Dovgiallo. “Thermal Insulation Materials From Sapropel And Hemp Shives (Cannabis Sativa L .)”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (August 9, 2015): 57–61. Accessed December 26, 2024. https://journals.ru.lv/index.php/ETR/article/view/881.