By Beauregard Raymond A.   in The College Mathematics Journal

ISSN:1931-1346|40|1|17-21

Mathematical Association of America‎(2009)‎

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By Beauregard Raymond A.   in Mathematics Magazine

ISSN:1930-0980|81|4|300-301

Mathematical Association of America‎(2008)‎

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By Beauregard Raymond A.   in Mathematics Magazine

ISSN:1930-0980|80|2|135-136

Mathematical Association of America‎(2007)‎

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By Beauregard Raymond A.   Dobrushkin Vladimir A.   in Mathematics Magazine

ISSN:1930-0980|86|4|280-287

Mathematical Association of America‎(2013)‎

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