Singular filtering via spectral interactor matrix. - Sergio Bittanti; Patrizio Colaneri; Marco Fabio Mongiovi (IEEE Trans. Autom. Control., 1995)

From singular to nonsingular filtering of periodic systems: filling the gap with the spectral interactor matrix. - Sergio Bittanti; Patrizio Colaneri; Marco Fabio Mongiovi (IEEE Trans. Autom. Control., 1999)