files 
ListOfArticles(year).txt
have index number in 1st column
article title in 2d column

files 
WikiArticles(year).txt
have index "i" (1st column) pointing to index "j" in 2d column

the data for the slot 200908 are available at
http://www.quantware.ups-tlse.fr/QWLIB/2drankwikipedia/
