Van Thienen, Vince. „State Control, Regionality or Guidelines? The Production of the Crossbow Brooch“. In The Production of Military Equipment – Fabricae, Private Production and More: Panel 9.1, herausgegeben von Stefanie Hoss, 47–57. Archaeology and Economy in the Ancient World: Proceedings of the 19th International Congress of Classical Archaeology, Cologne/Bonn 2018 48. Heidelberg: Propylaeum, 2021. Zugegriffen Mai 9, 2024. https://books.ub.uni-heidelberg.de/propylaeum/catalog/book/761/chapter/10621.