AR systems and AR processes: the singular case. - Manfred Deistler; Alexander Filler; Bernd Funovits (Commun. Inf. Syst., 2011)

Identifiability of regular and singular multivariate autoregressive models from mixed frequency data. - Brian D. O. Anderson; Manfred Deistler; Elisabeth Felsenstein; Bernd Funovits; Peter A. Zadrozny; Michael Eichler; Weitian Chen; Mohsen Zamani (CDC, 2012)