LENART, Łukasz. Discrete Spectral Analysis. The Case of Industrial Production in Selected European Countries. Dynamic Econometric Models, [S. l.], v. 15, p. 27−47, 2015. DOI: 10.12775/DEM.2015.002. Disponível em: https://apcz.umk.pl/DEM/article/view/DEM.2015.002. Acesso em: 6 sep. 2026.