Álvarez-Sanchís, Jesús R. (). „Oppida and Celtic society in western Spain”. e-Keltoi: Journal of Interdisciplinary Celtic Studies, Vol. 6 (The Celts in the Iberian Peninsula). Arhivat din original la . Accesat în .
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Álvarez-Sanchís, Jesús R. (). „Oppida and Celtic society in western Spain”. e-Keltoi: Journal of Interdisciplinary Celtic Studies, Vol. 6 (The Celts in the Iberian Peninsula). Arhivat din original la . Accesat în .