@inproceedings{Das_j1998_a, author = {J{\"u}rgen~Dassow}, title = {Some remarks on extended regular languages}, booktitle = {Proc. 3rd Internat. Conf. Developments in Language Theory}, publisher = {Aristotle University of Thessaloniki}, year = 1998, editor = {Symeon~Bozapalidis}, pages = {477--488} }