Schmidt ,Gunther  <br/><br/>
Relational topology / 
Gunther Schmidt and Michael Winter  
 - Switzerland :  Springer ,  2018. 
 - xiv, 191p.  22 cm. 
<br/><br/><label>ISBN: </label>9783319744506 
<br/><br/><label>Dewey Class. No.: </label>514.2  / SCH