By Barza Sorina   Persson   Lars-Erik   Soria Javier   in Acta Mathematica Hungarica

ISSN:0236-5294|104|3|203-224

Springer Publishing Company ‎(2004)‎

Access to resources Favorite 16.48725

By Grevholm Barbro   Persson Lars-Erik   Wall Peter   in Educational Studies in Mathematics

ISSN:0013-1954|60|2|173-197

Springer Publishing Company ‎(2005)‎

Access to resources Favorite 16.48725

By Kufner Alois   Maligranda Lech   Persson Lars-Erik   in American Mathematical Monthly

ISSN:1930-0972|113|8|715-732

Mathematical Association of America‎(2006)‎

Access to resources Favorite 16.48725