Between borders: Franks, Danes, and Abodrites in the trans-Elben world up to 827 - Melleno, Daniel (. Early medieval Europe. - London [u.a.] : Wiley-Blackwell, 1992-. - Online-Ressource. - ISSN 1468-0254. - DOI 10.1111/(ISSN)1468-0254 25, 2017)