(en) Sigmund Feist, « The Origin of the Germanic Languages and the Europeanization of North Europe », Language, Linguistic Society of America, vol. 8, no 4, , pages 245–254 (DOI10.2307/408831, JSTOR408831)
jstor.org
(en) Sigmund Feist, « The Origin of the Germanic Languages and the Europeanization of North Europe », Language, Linguistic Society of America, vol. 8, no 4, , pages 245–254 (DOI10.2307/408831, JSTOR408831)