By Lunsford Matt   in PRIMUS

ISSN:1051-1970|21|1|91-98

Taylor & Francis Ltd‎(2011)‎

Access to resources Favorite 19.1553

By Lunsford Matt D.   in Mathematics Magazine

ISSN:1930-0980|87|5|377-380

Mathematical Association of America‎(2014)‎

Access to resources Favorite 15.32424