Erratum, Volume 75
Journal:
Bull. Amer. Math. Soc. 76 (1970), 426
DOI:
https://doi.org/10.1090/S0002-9904-1970-12498-3
Original Article:
Bull. Amer. Math. Soc. 75 (1969), 318-324.
MathSciNet review:
1566545
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