@InProceedings{	  lo05mfcs,
  author	= "Markus Lohrey and Nicole Ondrusch",
  title		= "Inverse monoids: decidability and complexity of algebraic
		  questions",
  pages		= "664--675",
  booktitle	= "Proceedings of the 30th International Symposium on
		  Mathematical Foundations of Computer Science (MFCS 2005),
		  Gdansk (Poland)",
  editor	= "Joanna Jedrzejowicz and Andrzej Szepietowski",
  series	= "Lecture Notes in Computer Science",
  volume	= "3618",
  publisher	= "Springer-Verlag",
  year		= "2005",
  doi		= "10.1007/11549345_57"
}