A perfect ball
| Authors | |
|---|---|
| Publication date | 2005 |
| Book title | Mathematics Education: paths and crossroads. Proceedings of the International meeting in honour of Paulo Abrantes |
| Pages (from-to) | 139-144 |
| Publisher | Lissabon: Associação de Professores de Matemática |
| Organisations |
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| Document type | Conference contribution |
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