Giambattista Amati Guiseppe Amodeo Marco Bianchi Carlo Gaibisso Giorgio Gambosi FUB, IASI-CNR and University of Tor Vergata at TREC 2008 Blog Track. 2008 TREC http://trec.nist.gov/pubs/trec17/papers/fondazione.blog.pdf conf/trec/2008 db/conf/trec/trec2008.html#AmatiABGG08