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- Bull. Amer. Math. Soc. 45 (1939), 63-66
References
Additional Information
- Journal: Bull. Amer. Math. Soc. 45 (1939), 63-66
- DOI: https://doi.org/10.1090/S0002-9904-1939-06928-0
- MathSciNet review: 1563914