By Schmuland Byron   in American Mathematical Monthly

ISSN:1930-0972|122|4|386-389

Mathematical Association of America‎(2015)‎

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By Dawson Donald A.   Li Zenghu   Schmuland Byron   Sun Wei   in Potential Analysis

ISSN:0926-2601|21|1|75-97

Springer Publishing Company ‎(2004)‎

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