Freiesleben, H. C. « Comparison Between Two Decca Chains: Summary of a Paper Presented at a Meeting of the Ausschuss Fiir Funkortung at Essen on 28 February 1956 ». The International Hydrographic Review, no. 1 (avril 26, 2018). Consulté le août 17, 2024. https://journals.lib.unb.ca/index.php/ihr/article/view/26677.