Hayashi, Chihiro. <br/><br/>
Nonlinear oscillations in physical systems. 

 - Princeton, N.J.:  Princeton University Press,  1964. 
 - 392 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equacoes Diferenciais.
<br/><br/><label>Dewey Class. No.: </label>515.35  / H413n