NIEMI, Hannu. On the linear prediction problem of certain non-stationary stochastic processes. MATHEMATICA SCANDINAVICA, [S. l.], v. 39, p. 146–160, 1976. DOI: 10.7146/math.scand.a-11652. Disponível em: https://tidsskrift.dk/math/article/view/11652. Acesso em: 14 aug. 2026.