Germanische Altertumskunde Online (Germanic Antiquity Studies Online) - just like the Reallexikon that has merged with it - is accompanied by supplementary volumes. This series comprises both monographs and edited volumes on specific topics from the fields of archaeology, history, and literary studies. It thus expands the database with the inclusion of aspects that require comprehensive analysis. More than 100 volumes have now appeared, from Germanenproblemen in heutiger Sicht (The Problems of Germanic Peoples from a Contemporary Perspective) to Germanische Altertumskunde im Wandel (Germanic Antiquity Studies in Flux).

In 1863 Rudolph Ludwig retrieved 250 fibulae from the 1st to 4th centuries comprising what is known as the a oePyrmonter Brunnenfunda . After their discovery, the pieces found their way into a large number of German collections, so that to this day there has been neither a thorough study of the whole find nor a proper assessment and evaluation of it.The present study is the first to present the complete and very chequered history of the individual pieces, to determine their archaeological and historical significance and to compare the relevance of this sacrificial complex with other sacrificial sites, particularly in Northern Europe.