Diagnostic checking of unobserved components time series models / Andrew Harvey, Siem-Jan KoopmanSignal extraction and the formulation of unobserved components models / by Andrew Harvey and Siem Jan KoopmanSignal extraction and the formulation of unobserved components models / by Andrew Harvey and Siem Jan KoopmanCyclical components in economic time series : a Bayesian approach / Andrew C. Harvey, Thomas M. Trimbur, & Herman K. van Dijk