Lefschetz, Solomon,  1884-1972. <br/><br/>
Stability of nonlinear control systems / 
Solomon Lefscheftz. 
 - New York :  Academic Press,  1965. 
 - xi, 150 pages ;  24 cm. 
 - Mathematics in science and engineering  v. 13 .
<br/><br/>Bibliography: page 144-147. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control theory.<br/>Stability.<br/>Nonlinear mechanics.