sponsored by the ACM Special Interest Groups for Graphics and Automata and Computability Theory. sponsored by the ACM Special Interest Group for Automata and Computability Theory. sponsored by the ACM Special Interest Group for Autoamta and Computability Theory. ACM Special Interest Group for Graphics and Automata and Computability Theory. ACM Special Interest Group for Automata and Computability Theory. Special Interest Group for Automata and Computability Theory. Special Interest Group on Automata and Computability Theory. Special Interst Group on Automata and Computability Theory.