Ludwig Christian Alexander Karl Martens (or Ludwig Karlovich Martens; Russian: Людвиг Карлович Мартенс; 1 January [O.S. 20 December 1874] 1875 – 19 October 1948) was a Russian Marxist revolutionary, Soviet diplomat and engineer.[1]
- ^ "Мартенс Людвиг Карлович" [Martens, Ludwig Karlovich]. Great Soviet Encyclopedia (in Russian). Archived from the original on 20 December 2007. Retrieved 13 August 2021.