Iliescu, Ionuț. “The Actions of the Espionage Group Led by Vasile Chilian (1916-1917)”. The Annals of "Dunarea de Jos" University of Galati. Fascicle XIX: History 6 (December 2, 2007): 65-100. Accessed May 3, 2025. https://www.gup.ugal.ro/ugaljournals/index.php/history/article/view/872.