TRETJAKOVA, Rasma; GREBEŽA, Jūlija; MARTINOVS, Andris. Research Into Biological Characterictics of Dried Sapropel. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 223–227, 2015. DOI: 10.17770/etr2015vol1.619. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/619.. Acesso em: 3 may. 2024.