By Nowicki Andrzej   in American Mathematical Monthly

ISSN:1930-0972|122|10|958-966

Mathematical Association of America‎(2015)‎

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By Nowicki Andrzej   Nowosad Ilona   in Acta Mathematica Hungarica

ISSN:0236-5294|105|1-2|145-150

Springer Publishing Company ‎(2004)‎

Access to resources Favorite 15.021435