Liguo Zhang Yangzhou Chen Zhanggu Sun Nikos E. Mastorakis Alexander Yu. Aleksandrov Uniformly ultimate boundedness control for switched linear systems with parameter uncertainties. 3971-3974 2008 ACC https://doi.org/10.1109/ACC.2008.4587113 conf/amcc/2008 db/conf/amcc/acc2008.html#ZhangCSMA08