Revision history of "Abacus"
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How to Cite This Entry:
Abacus. BSE-3 (originator), Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Abacus&oldid=18853
Abacus. BSE-3 (originator), Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Abacus&oldid=18853
This text originally appeared in Encyclopedia of Mathematics - ISBN 1402006098