Nonlinear robust H∞ static output feedback controller design for parameter dependent polynomial systems: An iterative sum of squares approach. - Matthias Krug; Shakir Saat; Sing Kiong Nguang (CDC/ECC, 2011)

Robust H∞ static output feedback controller design for parameter dependent polynomial systems: An iterative sums of squares approach. - Matthias Krug; Shakir Saat; Sing Kiong Nguang (J. Frankl. Inst., 2013)