@unpublished{ictcs13,
    Author = {L. Aceto and Della Monica, D. and
            A. Ing\'olfsd\'ottir and A. Montanari and
            G. Sciavicco},
    Title = {A complete classification of the expressiveness 
             of interval logics of Allen's relations over dense 
             linear orders},
    Note = {14th Italian Conference on Theoretical 
            Computer Science (ICTCS)},
    Year = {2013}}