Lie Algebraic Representation Results for Nonstationary Evolution Operators. - T. Huillet; André Monin; Gérard Salut (Math. Syst. Theory, 1987)

Lie Algebraic Canonical Representations in Nonlinear Control Systems. - T. Huillet; André Monin; Gérard Salut (Math. Syst. Theory, 1987)