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10.1090/s0002-9947-99-02231-x
Costa, Douglas L., Keller, Gordon E.Volume:
351
Language:
english
Journal:
Transactions of the American Mathematical Society
DOI:
10.1090/s0002-9947-99-02231-x
Date:
December, 1999
File:
PDF, 519 KB
english, 1999