Antosiewicz, H <br/><br/>
Contributions to the theory of nonlinear ascillations 

 - Princeton  Princeton university press          1958 
 - v,211 p.  Includes bibliographical reference and index 
<br/><br/><label>Source: </label> reference  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nonlinear oscillations <br/>Mathematics