Gardeła L. The Dangerous Dead? Rethinking Viking-Age Deviant Burials, In: L. Słupecki & R. Simek (eds.), Conversions: Looking for Ideological Change in the Early Middle Ages, Studia Medievalia Septentrionalia Vienna: Fassbaender,
In 1984 Inga Hagg published a book about some and 10 th century finds at Hedeby (northern Germany). This book is written in a language that I do not understand (German), but it contains some diagrams which have proven very useful.