TOOMPEA HILL STABILITY ANALYSIS. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 1, p. 56–66, 1997. DOI: 10.17770/etr1997vol1.1861. Disponível em: https://archive-journals.rtu.lv/etr/article/view/3402.. Acesso em: 11 mar. 2026.