By Lazer Alan C.   in Mathematics Magazine

ISSN:1930-0980|79|3|210-213

Mathematical Association of America‎(2006)‎

Access to resources Favorite 18.097868

By Lazer Alan C.   Leckband Mark   in American Mathematical Monthly

ISSN:1930-0972|117|5|455-457

Mathematical Association of America‎(2010)‎

Access to resources Favorite 14.6848345