Spain

e-Keltoi: Journal of Interdisciplinary Celtic Studies, Center for Celtic Studies, University of Wisconsin-Milwaukee, has a series of in-depth papers in Vol 6. These cover a wide range of topics concerning the Celts within the locality of the Iberian Peninsula, including Portugal. Papers from research authors covering Archaeology, Local Gods, Ideologies and Religion, Pre-Roman Period, and Place Names are just a few of the subjects covered. 

Off site link                                         e-Keltoi Vol. 6

'Shifting Identities: The Metaphorics of Nature-Culture Dualism in Western and Basque Models of Self'

Prof. Roslyn M. Frank