1. Anderson, B.D.O., Moore, J.B.: Optimal Filtering. Prentice-Hall, Englewood Cliffs (1979)
2. Ball, J.A., Helton, J.W., Walker, M.L.: H ∞ control for nonlinear systems with output feedback. IEEE Trans. Autom. Control 38(4), 546–559 (1993)
3. Barabasi, A.L., Albert, R.: Emergence of scaling in random networks. Science 286(15), 509–512 (1999)
4. Basin, M., Sanchez, E., Martinez-Zuniga, R.: Optimal filtering for linear systems over polynomial observations. Int. J. Innov. Comput. Inf. Control 4(2), 313–320 (2008)
5. Basin, M., Sanchez, E., Martinez-Zuniga, R.: Optimal linear filtering for systems with multiple state and observation delays. Int. J. Innov. Comput. Inf. Control 3(5), 1309–1320 (2008)