Bartholdi, LaurentLaurentBartholdiGodin, ThibaultThibaultGodinKlimann, InesInesKlimannNoûs, CamilleCamilleNoûsPicantin, MatthieuMatthieuPicantin2021-04-142021-04-142021https://resolver.sub.uni-goettingen.de/purl?gro-2/80732enA New Hierarchy for Automaton Semigroupsjournal_article10.1142/S0129054120420046