PASTARUS, Juri-Rivaldo. TOOMPEA HILL STABILITY AND TALLINN AREA SUBSIDENCE. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 136–141, 1999. DOI: 10.17770/etr1999vol1.1886. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/1886.. Acesso em: 2 may. 2024.