MARSHALL, D. I. Approaches to the development of river course cleaning systems from mechanical clocks. Environmental safety and natural resources, [S. l.], v. 49, n. 1, p. 161–168, 2024. DOI: 10.32347/2411-4049.2024.1.161-168. Disponível em: https://es-journal.in.ua/article/view/305346. Acesso em: 30 sep. 2025.