1. DOMPE , R. J. , and DORF , R. C. , 1907 ,Proc. 5th ann. Allerton Conf. on Circuit and System Theory, University of Illinois , Urbana , p. 170 .
2. KAHNE , S. J. , 1900 ,Proc. 4th ann. Allerton Conf. on Circuit and System Theory, University of Illinois , Urbana , p. 497 .
3. Comparisons of Sensitivity Improvement Techniques for Linear Optimal Control Systems