LaSalle, Joseph P. <br/><br/>
International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics 

 - New York :   Academic Press,   1963. 
 - p. 505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECUACIONES DIFERENCIALES
<br/><br/><label>Universal Decimal Class. No.: </label>517.93