https://www.chu.cam.ac.uk/wp-content/uploads/2017/12/Letter-from-Lise-Meitner-to-Otto-Hahn-18-January-1939-discussing-the-article-Uranium-she-and-Otto-Frisch-had-submitted-to-Nature-and-its-relevance-to-Hahns-ongoing-research-MTNR-5-21-700x545.jpg