SPECIAL SPLINE APPROXIMATION FOR THE SOLUTION OF THE NON-STATIONARY 3-D MASS TRANSFER PROBLEM. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 2, p. 69–73, 2021. DOI: 10.17770/etr2021vol2.6577. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4454.. Acesso em: 11 mar. 2026.