@inproceedings{'Bos2006TREC',
   title     = {'The "La Sapienza" Question Answering system at TREC-2006'},
   author    = {'Bos', 'Johan'},
   booktitle = {'The Fifteenth Text RETrieval Conference (TREC 2006)'},
   editor    = {Voorhees, E. M. and 'Buckland', 'L. P.'},
   address   = {'Gaitersburg, MD'},
   pages     = {797--803},
   year      = {2006}
}