GUSEYNOV, Sharif E.; URBAH, Alexander I.; ANDREYEV, Sergey A. On one Approach for Stable Estimate of Technical System Efficiency. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 3, p. 100–108, 2015. DOI: 10.17770/etr2015vol3.191. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/191.. Acesso em: 3 may. 2024.