Karel Culik II, Juhani Karhumäki. On the Ehrenfeucht Conjecture for DOL Languages. ITA, 17(3):205-230, 1983.
@article{CulikK83:0, title = {On the Ehrenfeucht Conjecture for DOL Languages}, author = {Karel Culik II and Juhani Karhumäki}, year = {1983}, researchr = {https://researchr.org/publication/CulikK83%3A0}, cites = {0}, citedby = {0}, journal = {ITA}, volume = {17}, number = {3}, pages = {205-230}, }