Controllability and Observability of Second Order Descriptor Systems. - Philip Losse; Volker Mehrmann (SIAM J. Control. Optim., 2008)

The Modified Optimal Hinfinity Control Problem for Descriptor Systems. - Philip Losse; Volker Mehrmann; Lisa Katrin Poppe; Timo Reis (SIAM J. Control. Optim., 2008)

Hinfinity-control for descriptor systems - A structured matrix pencils approach. - Philip Losse; Timo Reis (CDC, 2009)

Robust formulas for optimal H∞ controllers. - Peter Benner; Ralph Byers; Philip Losse; Volker Mehrmann; Hongguo Xu (Autom., 2011)