A NOVEL METHOD FOR BIRCH OUTER BARK QUALITY CONTROL USING HIGHER HEATING VALUE. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 3, p. 282–285, 2017. DOI: 10.17770/etr2017vol3.2550. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4132.. Acesso em: 11 mar. 2026.