1. Beard, R.V. "Failure Accommodation in Linear Systems through Self-Reorganization," CR-118314,1971, NASA.
2. 4Jazwinski, A.H., Stochastic Processes and Filtering Theory, Academic Press, New York, 1970, pp.195-200.
3. Sage, A.P. and Melsa, J.L., Estimation Theory, McGraw-Hill, New York, 1971, pp.116-171.