PETROVA, Desislava. INNOVATIVE OBSOLESCENCE IN MECHANICAL ENGINEERING AND SINGLENESS OF INDICATORS. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 3, p. 221–224, 2024. DOI: 10.17770/etr2024vol3.8123. Disponível em: https://journals23.rta.lv/index.php/ETR/article/view/8123.. Acesso em: 12 apr. 2025.