Juhani Karhumäki, Wojciech Plandowski, Filippo Mignosi. A lower bound for a constant in Shallit s conjecture. In Symeon Bozapalidis, editor, Proceedings of the 3rd International Conference Developments in Language Theory, DLT 1997, Thessaloniki, Greece, July 20-23, 1997. pages 103-118, Aristotle University of Thessaloniki, 1997.
Abstract is missing.