Fun with Sign.
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| Title: | Fun with Sign. |
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| Authors: | LI ZHOU1 lzhou@polk.edu |
| Source: | Mathematical Gazette. Nov2013, Vol. 97 Issue 540, p465-473. 9p. |
| Database: | Mathematics Source |
| ISSN: | 00255572 |
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| DOI: | 10.1017/s002555720000022x |
