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10.1090/s0002-9939-03-07082-5
Sun, Wenchang, Zhou, XingweiVolume:
131
Language:
english
Journal:
Proceedings of the American Mathematical Society
DOI:
10.1090/s0002-9939-03-07082-5
Date:
August, 2003
File:
PDF, 362 KB
english, 2003