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"Degrees of Categoricity and the Hyperarithmetic Hierarchy."
Barbara F. Csima, Johanna N. Y. Franklin, Richard A. Shore (2013)
- Barbara F. Csima, Johanna N. Y. Franklin, Richard A. Shore:
Degrees of Categoricity and the Hyperarithmetic Hierarchy. Notre Dame J. Formal Log. 54(2): 215-231 (2013)
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