RATNIKA, Līga; LAIZĀNE, Ināra. STUDY OF POSSIBILITIES OF USING WOOD ASH. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, Rezekne, Latvia, n. 24, p. 156–162, 2020. DOI: 10.17770/het2020.24.6768. Disponível em: https://journals.ru.lv/index.php/HET/article/view/6768.. Acesso em: 4 dec. 2024.