Origin of critical raw materials in technogenically disturbed soils from the territory of a steel metallurgical plant in Southeastern Europe. Bulgarian Journal of Soil Science, Agrochemistry and Ecology, [S. l.], v. 59, n. 4, p. 3–15, 2025. DOI: 10.61308/JZUT1154. Disponível em: https://agriacad.eu/ojs/index.php/bjssae/article/view/6586.. Acesso em: 10 feb. 2026.