Samoilenko, A <br/><br/>
Multifrequency Oscillations of Nonlinear Systems   
by A Samoilenko and R Petryshyn 
 - Dordrecht  Kluwer  2004 
 - vi, 317p 
 - Mathematics and its applications .
<br/><br/><label>ISBN: </label>9789048165742 
<br/><br/><label>Dewey Class. No.: </label>003.75  / P04