academic article

• Inner and Outer Geometry for Singular Systems with Computation of Subspaces.  Int. J. Control.  53:661-687. 1991
• Large Scale Dynamical Interconnections of Stochastic Singular Systems.  Circuits Systems and Signal Proc..  10:115-133. 1991
• Shuffle Algorithm for Two Dimensional Singular Systems with a Fornasini Marchesini Model.  Kybernetica Special Issue on System Structure and Control.  27:243-252. 1991