?url_ver=Z39.88-2004&rft_id=10.1007%2FBFb0120769&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Casti%2C+J.&rft.aulast=Casti&rft.aufirst=J.&rft.date=1+January+1975&rft.issn=0303-3929&rft.isbn=978-3-642-00784-2&rft.title=A+reduced+dimensionality+method+for+the+steady-state+Kalman+filter&rft.btitle=Stochastic+Systems%3A+Modeling%2C+Identification+and+Optimization%2C+I&rft.genre=bookitem