@InProceedings{l04-p540-556,
  AUTHOR    = {Argimiro Arratia and Carlos Ortiz},
  TITLE     = {Approximating the expressive power of logics in finite models},
  YEAR      = 2004,
  ADDRESS   = {Buenos Aires, Argentina},
  BOOKTITLE = {Proc.~of the 6th Latin American Symposium on Theoretical Informatics (LATIN'04)},
  PAGES     = {540--556},
  KEYWORDS  = {}}