Journal of Computer and System Sciences · 1980 · 103 citations · 5 references
ComputingComputer ScienceMathematicsAlgorithmsCombinatoricsTheory Of ComputationAutomata TheoryComputational ComplexityFinite AutomataFinite-state MachinesAutomata-theoretic CharacterizationsFinite Automata TheoryLower Bounds
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The complexity of theorem-proving procedures
Stephen Cook · 1971 · 6.2K citations · Full text
Nondeterminism and the size of two way finite automata
William J. Sakoda, Michael Sipser · 1978 · 172 citations · Full text