At the Crossroads of Space and Time. Graves, Changing Society and Ideology on Saaremaa (Ösel), 9th–13th centuries AD. 

Mägi, M. (2002). At the Crossroads of Space and Time. Graves, Changing Society and Ideology on Saaremaa (Ösel), 9th–13th centuries AD. Tallinn: Ajaloo Instituut, Tallinn/Center of Baltic Studies, Gotland.

Read the book: here.

Look at the drawings of the archaeological excavations: here.