Leeschetz S <br/><br/>
Contribution to the theory of nonlinear oscilliations 

 -  1950 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>61193 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics
<br/><br/><label>Dewey Class. No.: </label>B7:5, J01