YiQing Huang HanFu Chen HaiTao Fang Identification of Wiener systems with nonlinearity being piecewise-linear function. 1-12 2008 51 Science in China Series F: Information Sciences 1 http://dx.doi.org/10.1007/s11432-007-0071-0 db/journals/chinaf/chinaf51.html#HuangCF08