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Natural SciencesGeophysicsTopologyMetric GeometryRiemann - Hilbert ProblemsRiemann SurfacesRiemann-hilbert Problems
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Theory of Recursive Functions and Effective Computability
D. C. Cooper · The Computer Journal · 1969 · 2.6K citations · Full text
Andrzej Grzegorczyk · Fundamenta Mathematicae · 1955 · 195 citations · Full text