KAĶĪTIS, A.; NULLE, I. Durability of Biomass Briquettes. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 139–144, 2006. DOI: 10.17770/etr2003vol1.1999. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/1999.. Acesso em: 3 may. 2024.