Characterizations of Pushdown Machines in Terms of Time-Bounded Computers
Journal of the ACM (JACM)
A Formalization of Transition Diagram Systems
Journal of the ACM (JACM)
Even Simple Programs Are Hard To Analyze
Journal of the ACM (JACM)
Revised report on the algorithm language ALGOL 60
Communications of the ACM
Computation: finite and infinite machines
Computation: finite and infinite machines
Formal languages and their relation to automata
Formal languages and their relation to automata
Decidable problems for powerful programs
Journal of the ACM (JACM)
The essence of computation
Hierarchies of infinite structures generated by pushdown automata and recursion schemes
MFCS'07 Proceedings of the 32nd international conference on Mathematical Foundations of Computer Science
An observationally complete program logic for imperative higher-order functions
Theoretical Computer Science
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