Verhart, Leo (2006), Op Zoek naar de Kelten, Nieuwe archeologische ontdekkingen tussen Noordzee en Rijn (Searching for the Celts, new archaeological Discoveries between North Sea and Rhine) (بالهولندية), Matrijs, ISBN:978-90-5345-303-2
مزيد من القراءة
Greg Woolf, "Cruptorix and his kind. Talking ethnicity on the middle ground", Ton Derks, Nico Roymans (ed.), Ethnic Constructs in Antiquity: The Role of Power and Tradition (Amsterdam: Amsterdam University Press, 2009) (Amsterdam Archaeological Studies, 13), 207-218.
Jos Bazelmans, "The early-medieval use of ethnic names from classical antiquity. The case of the Frisians", in Ton Derks, Nico Roymans (ed.), Ethnic Constructs in Antiquity: The Role of Power and Tradition (Amsterdam: Amsterdam University Press, 2009) (Amsterdam Archaeological Studies, 13), 321-329.
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