Weinert, Howard L. Fixed interval smoothing for state space models / by H.L. Weinert. - Boston [etc] : Kluwer Acad. Publ., 2001. - ix, 118 p. - The Kluwer International Series in Engineering and Computer Scinece; I 609 . Bibliogr.: p. 99-114 ISBN: 0-7923-7299-9 Subjects--Topical Terms: Smoothing (Statistics)State-space methods