Given a family of linear systems depending on a parameter varying in a differentiable manifold, we obtain sufficient
conditions for the existence of a (global or local) differentiable family of controllers solving the output regulation problem for
the given family. Moreover, we construct it when these conditions hold.
Compta, A.; Ferrer, J.; Peña, M. Output regulation problem for differentiable families of linear systems. "AIP Conference proceedings", 2009, vol. 1168, p. 49-52.