Bartholdy, Jesper. “H.R. Langguth: List of Terms Ofhydrogeology, Geochemistry and Geothermals of Mineral and Thermal Waters. (International Contributions to Hydrogeology; Vol. 3)”. Geografisk Tidsskrift 87 (januar 1, 1987). Set marts 2, 2026. https://tidsskrift.dk/geografisktidsskrift/article/view/44434.