Control of the amplitude in a surging balling drum circuit, a new approach to an old problem. - Knut Rapp; Per-Ole Nyman (ECC, 2003)

Generalized pseudo-inverse based nested discrete-time LQ-control with indefinite cost. - Per-Ole Nyman (CDC/ECC, 2005)

Indefinite LQ-control of discrete time descriptor systems by nested pseudo-inversion. - Per-Ole Nyman (CDC, 2006)

A pseudo-inverting nested indefinite quadratic control for time-varying systems. - Per-Ole Nyman (ACC, 2007)

Non-recursive indefinite least squares approach to linear quadratic control for time-varying systems. - Per-Ole Nyman (CDC, 2007)

Hierarchical least squares optimal control of 2-D systems. - Per-Ole Nyman (ACC, 2009)

E-driven technology for cold regions. - Umair N. Mughal; Taimur Rashid; Per-Ole Nyman; Muhammad S. Virk (CogInfoCom, 2013)