@Article{	  DiekertLohreyMiller08,
  author	= "Volker Diekert and Markus Lohrey and Alexander Miller",
  title		= "Partially commutative inverse monoids",
  journal	= "Semigroup Forum",
  volume	= "77",
  number	= "2",
  year		= "2008",
  pages		= "196--226",
  note		= "Conference version: MFCS 2006, LNCS 4162, 292--304 (2006)",
  doi		= "10.1007/s00233-008-9060-x"
}