1. Optimal filtering;Anderson,1979
2. Advanced gain-scheduling techniques for uncertain systems;Apkarian;IEEE Transactions on Control Systems Technology,1998
3. Periodic control of vibrations in helicopters;Bittanti,2000
4. IFAC workshop on periodic control systems, CernobbioComo, Italy. 27-28 August 2001
5. The extended periodic Lyapunov lemma;Bittanti;Automatica,1985