Books, periodicals and other sources online: https://slaegtsbibliotek.dk/online-lister/alle-online.html
Sogn Herred Amt: https://slaegt.dk/media/at2jelux/sognherredamt2021tryk.pdf
Case Study of Naestved: https://www.vr-elibrary.de/doi/pdf/10.7788/9783412528621.244