Agata Savary Christian Jacquemin Reducing Information Variation in Text. 145-181 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2705&spage=145 2000 conf/elsnet/2000 ELSNET Summer School db/conf/elsnet/elsnet2000.html#SavaryJ00