LQ-optimal control by spectral factorization of extended semigroup boundary control systems with approximate boundary observation. - Jérémy R. Dehaye; Joseph J. Winkin (CDC, 2013)

LQ-optimal boundary control of infinite-dimensional systems with Yosida-type approximate boundary observation. - Jérémy R. Dehaye; Joseph J. Winkin (Autom., 2016)