By Saltzman Peter W.   Yuan Pingzhi   in American Mathematical Monthly

ISSN:1930-0972|115|3|254-261

Mathematical Association of America‎(2008)‎

Access to resources Favorite 10.054563

By Israel Robert   Saltzman Peter   Wagon Stan   in Mathematics Magazine

ISSN:1930-0980|86|3|204-210

Mathematical Association of America‎(2013)‎

Access to resources Favorite 9.281224