Joan C. Artés, Jaume Llibre, Dana Schlomiuk, Nicolae Vulpe <br/><br/>
Geometric Configurations of Singularities of Planar Polynomial Differential Systems  

 -  Springer  Springer  2021 
<br/><br/><label>ISBN: </label>9783030505707 
<br/><br/><label>Source: </label>EBOOK