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Schenk, Joep (2021) The Rhine and European Security in the Long Nineteenth Century: Making Lifelines from Frontlines. Routledge Studies in Modern European History (195). Routledge, New York. ISBN 978-0-429-32666-0

Semple, Sarah and Sanmark, Alexandra and Iversen, Frode and Mehler, Natascha (2021) NEGOTIATING THE NORTH: MEETING-PLACES IN THE MIDDLE AGES IN THE NORTH SEA ZONE. THE SOCIETY FOR MEDIEVAL ARCHAEOLOGY MONOGRAPH 41, - (-). Routledge, London. ISBN 978-1-003-04566-3