ELSEVIER Systems & Control Letters 32 (1997) 231 234 SYSTIMS CONTROL UTTIitfi On a large-gain theorem 1 Tryphon T. Georgioua, Mustafa Khammashb'*, Alexander Megretskic a Deoartment of Electrical Engineerin9, University of Minnesota, Minneapolis, MN 55455, USA b Electrical and Computer Engineerin9 Department, Iowa State University, Ames, IA 50011, USA c Laboratory for Information …