@InProceedings{Torre05NonmonotonicReasinign,
  Title                    = {Non-monotonic reasoning with various kinds of preferences},
  Author                   = {Kaci, S. and van der Torre, L.},
  Booktitle                = {Proceedings of PREF05},
  Year                     = {2005},

  Abstract                 = {We are interested in systems which do not prescribe
one single kind of preference, but in which
varying kinds of preferences can be used simultaneously.
In such systems it is essential to know
the interaction among the kinds of preferences being
used, and we therefore introduce and study a
nonmonotonic logic to reason about sixteen strict
and non-strict kinds of preferences, including ceteris
paribus preferences. Moreover, we study “distinguished�
preference orders based on specificity
principles by showing when these distinguished
preference orders are unique, and by presenting algorithms
to calculate the distinguished preference
orders.},
  Url                      = {http://icr.uni.lu/leonvandertorre/papers/pref05.pdf}
}