Marco Storace Federico Bizzarri Towards Accurate PWL Approximations of Parameter-Dependent Nonlinear Dynamical Systems With Equilibria and Limit Cycles. 620-631 2007 54-I IEEE Trans. Circuits Syst. I Regul. Pap. 3 https://doi.org/10.1109/TCSI.2006.887623 https://www.wikidata.org/entity/Q57829235 db/journals/tcas/tcasI54.html#StoraceB07