The hybrid stabilization of planar linear systems was presented with one-dimensional outputs. A linear control system was considered and the necessary and sufficient conditions were obtained such that the system could be stabilized by a hybrid linear feedback. It was shown that the use of two control functions was enough for getting the goals on these conditions.
Benassi, C., & Gavioli, A. (2002). Hybrid stabilization of planar linear systems with one-dimensional outputs. Systems and Control Letters, 46(5), 303–309. https://doi.org/10.1016/S0167-6911(02)00126-3