@Article{ Lohrey04dlt, author = "Markus Lohrey", title = "Decidability and complexity in automatic monoids", volume = "3340", year = "2004", pages = "308--320", publisher = "Springer", address = "Heidelberg", series = "Lecture Notes in Computer Science", booktitle = "8th International Conference, DLT 2004, Auckland, New Zealand, December 13-17, Proceedings", doi = "10.1007/978-3-540-30550-7_26" }