Andreescu, Titu et al <br/><br/>
Geometric problems on maxima and minima   
by Titu Andreescu et al 
 - Boston  Springer  2011 
 - ix, 264p 
<br/><br/><label>ISBN: </label>9788184898866 
<br/><br/><label>Dewey Class. No.: </label>511.66  / P11