MAE509 (LMIs in Control): Lecture 10, part C - An LMI for H infinity-Optimal Dynamic Output Feedback
MAE509 (LMIs in Control): Lecture 17, part A - Local Polynomial Positivity and the Cone of Inference
MAE509 (LMIs in Control): Lecture 14, part A - The S-Procedure and Quadratic Stability using the LFT