Model reduction of multidimensional linear shift-invariant recursive systems using Padé techniques. - Annie A. M. Cuyt; Shiro Ogawa; Brigitte Verdonk (Multidimens. Syst. Signal Process., 1992)

A new approach to optimal averaging level control with state constraints. - Shiro Ogawa; Bruce J. Allison; Guy Albert Dumont; Michael S. Davies (CDC, 2002)