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"On Sequences of Degrees of Constructibility (Solution of Friedman'S ..."
Bohuslav Balcar, Petr Hájek (1978)
- Bohuslav Balcar, Petr Hájek:
On Sequences of Degrees of Constructibility (Solution of Friedman'S Problem 75). Math. Log. Q. 24(19-24): 291-296 (1978)
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