出典
- OIV International Code of Oenological Practices, I.3.3 Complementary definitions relating to carbon dioxide content
- OIV International Code of Oenological Practices, I.4.4 Sparkling wines
- Comité Champagne (champagne.education). Fiche Élaboration du Champagne (FR) (2024-05)
- Regione Piemonte. Disciplinare di produzione DOCG Asti (2025-01)
事実確認日 2026-10-19