Dingjun, L & Libang, T <br/><br/>
Qualitative theory of dynamical systems 
L. Dingjun & T. Libang 
 - Singapore  World Scientific  1993 
 - xiii  256 
 - Advanced series in dynamical systems 12 .
<br/><br/><label>ISBN: </label>9810212682 
<br/><br/><label>Dewey Class. No.: </label>12.01+6.07+6.08  / DING