On Realization of Linear Systems and Applications to Some Questions of Stability. - P. A. Fuhrmann (Math. Syst. Theory, 1975)

On behavior homomorphisms and system equivalence. - P. A. Fuhrmann (Syst. Control. Lett., 2001)

A note on continuous behavior homomorphisms. - P. A. Fuhrmann (Syst. Control. Lett., 2003)

Towards a compactification of the set of conditioned invariant subspaces. - Jochen Trumpf; Uwe Helmke; P. A. Fuhrmann (Syst. Control. Lett., 2003)

Equivalence conditions for behaviors and the Kronecker canonical form. - P. A. Fuhrmann; Uwe Helmke (Math. Control. Signals Syst., 2011)

Reachability, observability and strict equivalence of networks of linear systems. - Paul A. Fuhrmann; Uwe Helmke (Math. Control. Signals Syst., 2013)

Reachability of a cascade of linear systems with communication delays. - Erik I. Verriest; Uwe Helmke; Paul A. Fuhrmann (ACC, 2016)