By Nathanson Melvyn   in The Mathematical Intelligencer

ISSN:0343-6993|33|1|5-8

Springer Publishing Company ‎(2011)‎

Access to resources Favorite 21.271282

By Nathanson Melvyn B.   in American Mathematical Monthly

ISSN:1930-0972|120|5|409-429

Mathematical Association of America‎(2013)‎

Access to resources Favorite 17.017025

By Nathanson Melvyn B.   in American Mathematical Monthly

ISSN:1930-0972|121|1|5-17

Mathematical Association of America‎(2014)‎

Access to resources Favorite 17.017025

By Nathanson Melvyn B.   in American Mathematical Monthly

ISSN:1930-0972|122|8|790-792

Mathematical Association of America‎(2015)‎

Access to resources Favorite 17.017025