By Swain Gordon A.   in The College Mathematics Journal

ISSN:1931-1346|44|3|185-189

Mathematical Association of America‎(2013)‎

Access to resources Favorite 16.109703

By Swain Gordon   in Communications in Algebra

ISSN:0092-7872|38|5|1613-1620

Taylor & Francis Ltd‎(2010)‎

Access to resources Favorite 3.640624