MACHADO, Leandro Mendes. Innovation in maintenance contracts: structuring opex-based models for profitability and sustainability via led lighting projects. Revista Sistemática, [S. l.], v. 13, n. 1, 2024. DOI: 10.56238/rcsv13n1-006. Disponível em: https://sevenpubl.com.br/RCS/article/view/KAJ88. Acesso em: 16 out. 2025.