| Punct autorizat de acces - Subiect | |
| Subiect sau categorie de subiect | Descartes-Euler (Formula lui) |
| Element de intrare | |
| Autoritate | Descartes-Euler (Formula lui) |
250
__
$aDescartes-Euler (Formula lui)
299 __ $aDescartes-Euler (Formula lui)
299 __ $aDescartes-Euler (Formula lui)