@InProceedings{l10-p196-207,
  AUTHOR	= {Viliam Geffert and Giovanni Pighizzini},
  TITLE		= {Pairs of Complementary Unary Languages with "Balanced" Nondeterministic Automata},
  BOOKTITLE	= {Proc.~of the 9th Latin American Symposium on Theoretical Informatics (LATIN'10)},
  PAGES		= {196--207},
  YEAR		= 2010,
  ADDRESS	= {Oaxaca, Mexico},
  KEYWORDS	= {}}