By Crisman Karl-Dieter   in PRIMUS

ISSN:1051-1970|22|1|1-9

Taylor & Francis Ltd‎(2012)‎

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By Crisman Karl-Dieter   in The College Mathematics Journal

ISSN:1931-1346|42|2|135-139

Mathematical Association of America‎(2011)‎

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By Black Kelly   Crisman Karl-Dieter   Jardine Dick   in PRIMUS

ISSN:1051-1970|23|6|497-499

Taylor & Francis Ltd‎(2013)‎

Access to resources Favorite 19.262047

By Crisman Karl-Dieter   Veatch Michael H.   in The College Mathematics Journal

ISSN:1931-1346|45|3|191-197

Mathematical Association of America‎(2014)‎

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