New dates for the history of Basque in Alava and Navarra: The doctrine from Eulate (18th-19th centuries). Euskera Ikerketa Aldizkaria, [S. l.], v. 1, n. 68, p. 221–318, 2023. DOI: 10.59866/eia.v1i68.256. Disponível em: https://euskera-ikerketa.euskaltzaindia.eus/index.php/euskera/article/view/256. Acesso em: 5 sep. 2025.