Fikar, M., Kucera, V.: On stable finite length control problem. Proceedings of the 12th Int. Conference Process Control '99, Tatranske Matliare, Slovakia, 31.5–3.6.1999, Vol. 1, 11–15.

The contribution discusses a control problem when the control signal is constrained to be a polynomial in $z^{-1}$. This means that it can modify the behaviour of the controlled system only for a fixed number of steps and is zero afterwards.