TONISSON, Andres. THE INFLUENCE OF SOIL COVER ON LAKES IN NORTHERN ESTONIA. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 220–225, 1999. DOI: 10.17770/etr1999vol1.1871. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/1871.. Acesso em: 28 apr. 2024.