Marie-Pierre Béal, Dominique Perrin. A quadratic upper bound on the size of a synchronizing word in one-cluster automata. 13th International Conference on Developments in Language Theory (DLT 2009), Jun 2009, Stuttgart, Germany. Lecture Notes in Computer
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Marie-Pierre Béal, Dominique Perrin. A quadratic upper bound on the size of a synchronizing word in one-cluster automata.