By Farr G.E.   in Theoretical Computer Science

ISSN:0304-3975|306|1|1-18

Elsevier‎(2003)‎

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By Englefield M. J.   Farr G. E.   in Mathematics Magazine

ISSN:1930-0980|79|4|281-289

Mathematical Association of America‎(2006)‎

Access to resources Favorite 4.5012693