@InCollection{	  dg08SIWT,
  author	= "Volker Diekert and Paul Gastin ",
  title		= "First-order definable languages",
  booktitle	= "Logic and Automata: History and Perspectives",
  isbn		= "978 90 5356 576 6",
  editor	= "J. Flum and E. Gr{\"a}del and {\relax Th}. Wilke",
  series	= "Texts in Logic and Games",
  publisher	= "Amsterdam University Press",
  pages		= "261--306",
  year		= "2008"
}