COMPARATIVE STUDY OF INDUSTRIAL LIGNOSULFONATES AND SOME THEIR PROPERTIES. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 3, p. 189–192, 2019. DOI: 10.17770/etr2019vol3.4121. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4359.. Acesso em: 11 mar. 2026.