Rassias, John M. <br/><br/>
Counter examples in differential equations and related topics 

 - Singapore  World Scientific  1991 
 - vii,184p.  21 cm. 
<br/><br/><label>ISBN: </label>9810204604 
<br/><br/><label>Dewey Class. No.: </label>515.35,  / D, Ras