Bhatia, N.P & Szego, G.P <br/><br/>
Dynamical systems  stability theory & applications 
N.P. Bhatia & G.P. Szego 
 - Berlin  Springer  1967 
 - 416 
 - Lecture notes in mathematics 35 .
<br/><br/><label>Dewey Class. No.: </label>12.01+22  / BHAT