عباس الطائي ف. Fuzzy Logic of Non-Stationary Time Series Models with an Application. IRAQI JOURNAL OF STATISTICAL SCIENCES, [S. l.], v. 10, n. 2, p. 91–116, 2010. DOI: 10.33899/iqjoss.2010.028417. Disponível em: https://tanmiyat.uomosul.edu.iq/index.php/stats/article/view/29048. Acesso em: 6 sep. 2025.