NAZARENKO, I.; DEDOV, O. Investigation of complex structure systems based on spectral analysis. Technology audit and production reserves, [S. l.], v. 6, n. 1(50), p. 11–13, 2019. DOI: 10.15587/2312-8372.2019.188059. Disponível em: https://journals.uran.ua/tarp/article/view/188059. Acesso em: 21 may. 2024.