University of Paris 5
<BR>
University of Paris 2
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University of Paris 10
<BR>  
University of Paris 12
<BR>  
University of Paris 8
<BR>  
University of Paris 9
<BR>  
University of Paris 11
<BR>  
University of Paris 4
<BR>  
University of Paris 7
<BR>  
University of Paris 6 
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University of Paris 13
<BR>  
University of Paris 3
<BR>  
University of Paris 1
<BR>  
<BR>  

Can you deduce the way this ranking was established ?