Andresen, Jens-Bjørn R., and Søren M. Kristiansen. Historic Maps As Source for Hydrological Reconstruction of Pre-Industrial Landscape Wetness in Denmark: A Methodological Study. Rapporter. Aarhus, DK: AU Library Scholarly Publishing Services, 2023. Accessed July 15, 2025. https://ebooks.au.dk/aul/catalog/book/491.