NWOGU, Eleazar; IWUEZE, Iheanyichukwu; IKEDIUWA, Udoka. Decomposition with a Mixed Model When the Trend-Cycle Component Is Quadratic. Journal of Statistical Models and Methods, [S. l.], v. 2, n. 1, p. 23–35, 2026. DOI: 10.65905/k83mva91. Disponível em: https://jsmm.advantacore-sp.org/index.php/jsmm/article/view/13. Acesso em: 15 oct. 2026.