Martin Beaudry Markus Holzer Gundula Niemann Friedrich Otto On the Relationship between the McNaughton Families of Languages and the Chomsky Hierarchy. 340-348 2001 conf/dlt/2001 Developments in Language Theory http://link.springer.de/link/service/series/0558/bibs/2295/22950340.htm db/conf/dlt/dlt2001.html#BeaudryHNO01