Pavel V. Martugin. A series of slowly synchronizable automata with a zero state over a small alphabet. In Remco Loos, Szilárd Zsolt Fazekas, Carlos Martín-Vide, editors, LATA 2007. Proceedings of the 1st International Conference on Language and Automata Theory and Applications. Volume Report 35/07 of pages 391-402, Research Group on Mathematical Linguistics, Universitat Rovira i Virgili, Tarragona, 2007.
Abstract is missing.