Modified Lignin as an Environmentally Friendly Surfactant. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 1, p. 276–281, 2015. DOI: 10.17770/etr2011vol1.919. Disponível em: https://archive-journals.rtu.lv/etr/article/view/3740.. Acesso em: 11 mar. 2026.