1
Published: [2001]
Superior document: Contemporary mathematics, 287
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2
Published: [1992]
Superior document: Contemporary mathematics, 138
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3
Published: [1995]
Superior document: Contemporary mathematics, 191
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4
Published: 2011.
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5
Published: [2019]
Superior document: Title is part of eBook package: De Gruyter DGBA Mathematics - 1990 - 1999
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