FILHO, Walter Leal. WATERSKETCH: TOWARDS SUSTAINABLE RIVER BASIN MANAGEMENT IN THE BALTIC SEA REGION. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 310–318, 2005. DOI: 10.17770/etr2005vol1.2123. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/2123.. Acesso em: 23 apr. 2024.