https://www.wilsoncenter.org/blog-post/helmut-kohl-collection-new-resource-post-cold-war-history
https://lawliberty.org/book-review/when-legions-ruled/
https://papers.ssrn.com/sol3/Delivery.cfm/SSRN_ID3934683_code1082902.pdf?abstractid=3479439&mirid=1